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Add dutch auction sample with auditor (#426)
Signed-off-by: NIKHIL E GUPTA <ngupta@symbridge.com>
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nikhil550
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48 changed files with 3580 additions and 4 deletions
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@ -46,7 +46,8 @@ Additional samples demonstrate various Fabric use cases and application patterns
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| [Token ERC-20](token-erc-20) | Smart contract demonstrating how to create and transfer fungible tokens using an account-based model. | [README](token-erc-20/README.md) |
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| [Token ERC-20](token-erc-20) | Smart contract demonstrating how to create and transfer fungible tokens using an account-based model. | [README](token-erc-20/README.md) |
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| [Token UTXO](token-utxo) | Smart contract demonstrating how to create and transfer fungible tokens using a UTXO (unspent transaction output) model. | [README](token-utxo/README.md) |
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| [Token UTXO](token-utxo) | Smart contract demonstrating how to create and transfer fungible tokens using a UTXO (unspent transaction output) model. | [README](token-utxo/README.md) |
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| [High throughput](high-throughput) | Learn how you can design your smart contract to avoid transaction collisions in high volume environments. | [README](high-throughput/README.md) |
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| [High throughput](high-throughput) | Learn how you can design your smart contract to avoid transaction collisions in high volume environments. | [README](high-throughput/README.md) |
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| [Auction](auction) | Run an auction where bids are kept private until the auction is closed, after which users can reveal their bid | [README](auction/README.md) |
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| [Simple Auction](auction-simple) | Run an auction where bids are kept private until the auction is closed, after which users can reveal their bid. | [README](auction-simple/README.md) |
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| [Dutch Auction](auction-dutch) | Run an auction in which multiple items of the same type can be sold to more than one buyer. This example also includes the ability to add an auditor organization. | [README](auction-dutch/README.md) |
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| [Chaincode](chaincode) | A set of other sample smart contracts, many of which were used in tutorials prior to the asset transfer sample series. | |
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| [Chaincode](chaincode) | A set of other sample smart contracts, many of which were used in tutorials prior to the asset transfer sample series. | |
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| [Interest rate swaps](interest_rate_swaps) | **Deprecated in favor of state based endorsement asset transfer sample** | |
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| [Interest rate swaps](interest_rate_swaps) | **Deprecated in favor of state based endorsement asset transfer sample** | |
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| [Fabcar](fabcar) | **Deprecated in favor of basic asset transfer sample** | |
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| [Fabcar](fabcar) | **Deprecated in favor of basic asset transfer sample** | |
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615
auction-dutch/README.md
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615
auction-dutch/README.md
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@ -0,0 +1,615 @@
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## Dutch auction
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This example allows you to run a [Dutch auction](https://en.wikipedia.org/wiki/Dutch_auction) that sells multiple items of the same good. All items are sold at the price that clears the auction. You also have the option of adding an auditor organization to the auction. If the organizations running the auction cannot agree, or encounter a technical error that prevents them from updating the auction, one of the auction participants can appeal to an auditor organization. The dutch auction smart contract provides an example of how create a complex signature policy by creating a protobuf and then using the policy for state based endorsement.
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This tutorial uses the example smart contract to run an auction in which a single seller wants to sell 100 tickets to multiple bidders. If you chose to add an auditor to the auction, you can appeal to the auditor to end the auction by overriding the standard auction endorsement policy.
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## Deploy the chaincode
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Change into the test network directory.
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```
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cd fabric-samples/test-network
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```
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If the test network is already running, run the following command to bring the network down and start from a clean initial state.
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```
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./network.sh down
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```
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You can then run the following command to deploy a new network.
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```
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./network.sh up createChannel -ca
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```
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Run the following command to deploy the dutch auction smart contract.
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```
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./network.sh deployCC -ccn auction -ccp ../auction-dutch/chaincode-go/ -ccep "OR('Org1MSP.peer','Org2MSP.peer')" -ccl go
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```
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Note that we deploy the smart contract with an endorsement policy of `"OR('Org1MSP.peer','Org2MSP.peer')" ` instead of using the default endorsement policy of the majority of orgs on the channel. Either Org1 or Org2 can create an auction without the endorsement of the other organization.
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## Add an auditor (optional)
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The smart contract allows you to add an auditor organization to the auction. The auditor can add bids, close the auction, or end the auction if participants cannot cooperate. In this tutorial, we will add the Org3 organization to the test network channel and install an auditor specific version of the dutch auction smart contract. This allows you to use Org3 as the auditor organization.
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From the `test-network` directory, issue the following commands to add Org3 to the channel:
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```
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cd addOrg3
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./addOrg3.sh up
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```
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Navigate back to the test network directory:
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```
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cd ..
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```
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Set the following environment to interact with the test network as Org3.
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```
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export PATH=${PWD}/../bin:$PATH
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export FABRIC_CFG_PATH=${PWD}/../config/
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export CORE_PEER_TLS_ENABLED=true
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export CORE_PEER_LOCALMSPID="Org3MSP"
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export CORE_PEER_TLS_ROOTCERT_FILE=${PWD}/organizations/peerOrganizations/org3.example.com/peers/peer0.org3.example.com/tls/ca.crt
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export CORE_PEER_MSPCONFIGPATH=${PWD}/organizations/peerOrganizations/org3.example.com/users/Admin@org3.example.com/msp
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export CORE_PEER_ADDRESS=localhost:11051
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```
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To deploy the smart contract on the Org3 peer, we need to use the peer lifecycle chaincode commands to install the chaincode package and approve the chaincode definition as Org3. Run the following command to package the auditor version of the dutch auction smart contract:
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```
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peer lifecycle chaincode package auction.tar.gz --path ../auction-dutch/chaincode-go-auditor/ --lang golang --label auction_1
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```
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Install the chaincode package on the Org3 peer:
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```
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peer lifecycle chaincode install auction.tar.gz
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```
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The next step is to approve the chaincode as the Org3 admin. This requires getting the package ID of the chaincode that we just installed.
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```
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peer lifecycle chaincode queryinstalled
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```
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The command should return a response similar to the following:
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```
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Installed chaincodes on peer:
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Package ID: auction_1:8f0d6b6b5a616a1c2b6a9268418f2ee65718acc3c07ea12e123b189b3fb4fb14, Label: auction_1
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```
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Save the package ID returned by the command above as an environment variable. The package ID will not be the same for all users, so you need to complete this step using the package ID returned from your console.
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```
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export CC_PACKAGE_ID=auction_1:8f0d6b6b5a616a1c2b6a9268418f2ee65718acc3c07ea12e123b189b3fb4fb14
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```
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You can now approve the auction chaincode for Org3:
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```
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peer lifecycle chaincode approveformyorg -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" --channelID mychannel --name auction --version 1.0 --package-id $CC_PACKAGE_ID --sequence 1 --signature-policy "OR('Org1MSP.peer','Org2MSP.peer')"
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```
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The command will start the dutch auction chaincode on the Org3 peer. Note that we did not update the endorsement policy before we added the auditor organization. Only Org1 and Org2 will be able create an auction. The auditor is added the endorsement policy after the auction is created. Because the auditor does not need to create an auction or create new bids, the auditor can run a different version of the smart contract than the auction participants. The auditor version of the smart contract also adds logic to check that the request is submitted by one of the auction participants before the auditor can intervene.
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## Install the application dependencies
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We will run the dutch auction using a series of Node.js applications. Change into the `application-javascript` directory:
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```
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cd fabric-samples/auction-dutch/application-javascript
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```
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From this directory, run the following command to download the application dependencies if you have not done so already:
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```
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npm install
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```
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## Register and enroll the application identities
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To interact with the network, you will need to enroll the Certificate Authority administrators of Org1 and Org2. You can use the `enrollAdmin.js` program for this task. Run the following command to enroll the Org1 admin:
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```
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node enrollAdmin.js org1
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```
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You should see the logs of the admin wallet being created on your local file system. Now run the command to enroll the CA admin of Org2:
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```
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node enrollAdmin.js org2
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```
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We can use the CA admins of both organizations to register and enroll the identities of the seller that will create the auction and the bidders who will try to purchase the tickets. Run the following command to register and enroll the seller identity that will create the auction. The seller will belong to Org1.
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```
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node registerEnrollUser.js org1 seller
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```
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You should see the logs of the seller wallet being created as well. Run the following commands to register and enroll two bidders from Org1 and another three bidders from Org2:
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```
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node registerEnrollUser.js org1 bidder1
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node registerEnrollUser.js org1 bidder2
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node registerEnrollUser.js org2 bidder3
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node registerEnrollUser.js org2 bidder4
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node registerEnrollUser.js org2 bidder5
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```
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## Create the auction
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The seller from Org1 would like to create an auction to sell 100 tickets. Run the following command to use the seller wallet to run the `createAuction.js` application. The seller needs to provide an auction ID, the item to be sold, and the quantity to be sold to create the auction. The seller uses `withAuditor` to indicate that Org3 will be added as the auditor organization. If you do not want to add an auditor, you can provide a value of `noAuditor`. You will see the application query the auction after it is created.
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```
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node createAuction.js org1 seller auction1 tickets 100 withAuditor
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```
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Adding an auditor to the auction creates an endorsement policy with the auditor included. Without the auditor, each organization with sellers or bidders participating in the auction is added to the auction endorsement policy. For example, if the auction had two organizations participating in the auction, the auction endorsement policy would be `AND(Org1, Org2)`. However, if the selling organization decides to add an auditor, the auditor organization would be added to the endorsement policy. If the participating organizations disagree, or if a participant has a technical problem, the auditor can join any one of the participating organizations and agree to update the auction. Extending the example above, if the auction with two organizations added an auditor, the auction endorsement policy would be `OR(AND(Org1, Org2), AND(auditor, OR(Org1, Org2)))`.
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## Bid on the auction
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We can now use the bidder wallets to submit bids to the auction:
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### Bid as bidder1
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Bidder1 will create a bid to purchase 50 tickets for 80 dollars.
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```
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node bid.js org1 bidder1 auction1 50 80
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```
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The application will query the bid after it is created:
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```
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*** Result: Bid: {
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"objectType": "bid",
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"quantity": 50,
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"price": 80,
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"org": "Org1MSP",
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"buyer": "x509::CN=bidder1,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US"
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}
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```
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The `bid.js` application also prints the bidID:
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```
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*** Result ***SAVE THIS VALUE*** BidID: 6630e1bb06e827a2b77023f63677fae8a0ad43126730e450d3252fa58eeb85b1
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```
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The BidID acts as the unique identifier for the bid. This ID allows you to query the bid using the `queryBid.js` program and add the bid to the auction. Save the bidID returned by the application as an environment variable in your terminal:
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```
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export BIDDER1_BID_ID=6630e1bb06e827a2b77023f63677fae8a0ad43126730e450d3252fa58eeb85b1
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```
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This value will be different for each transaction, so you will need to use the value returned in your terminal.
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Now that the bid has been created, you can submit the bid to the auction. Run the following command to submit the bid that was just created:
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```
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node submitBid.js org1 bidder1 auction1 $BIDDER1_BID_ID
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```
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The hash of bid is added to the list of private bids in that have been submitted to `auction1`. Storing the hash on the public auction ledger allows users to prove the accuracy of the bids they reveal once bidding is closed. The application queries the auction to verify that the bid was added:
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```
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*** Result: Auction: {
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"objectType": "auction",
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"item": "tickets",
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"seller": "x509::CN=seller,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US",
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"quantity": 100,
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"organizations": [
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"Org1MSP"
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],
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"privateBids": {
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"\u0000bid\u0000auction1\u00006630e1bb06e827a2b77023f63677fae8a0ad43126730e450d3252fa58eeb85b1\u0000": {
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"org": "Org1MSP",
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"hash": "2f7a62152627d69d73e31b62cd4731d32ecc277de0eef4d30b1235891298abf7"
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}
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},
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"revealedBids": {},
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"winners": [],
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"price": 0,
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"status": "open",
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"auditor": true
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}
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```
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### Bid as bidder2
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Let's submit another bid. Bidder2 would like to purchase 40 tickets for 50 dollars.
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```
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node bid.js org1 bidder2 auction1 40 50
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```
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Save the Bid ID returned by the application:
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```
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export BIDDER2_BID_ID=5796569dae2e95242eadc5cf1cf8aa24f5ae072d801e7decb2547530de5a65e8
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```
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Submit bidder2's bid to the auction:
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```
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node submitBid.js org1 bidder2 auction1 $BIDDER2_BID_ID
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```
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### Bid as bidder3 from Org2
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Bidder3 will bid for 30 tickets at 70 dollars:
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```
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node bid.js org2 bidder3 auction1 30 70
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```
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Save the Bid ID returned by the application:
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```
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export BIDDER3_BID_ID=d52ea4d9b4bc428d395db2d68323bc12cc9b5c1f8617900f459ccd41c38d3c0a
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```
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Add bidder3's bid to the auction:
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```
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node submitBid.js org2 bidder3 auction1 $BIDDER3_BID_ID
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```
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Because bidder3 belongs to Org2, submitting the bid will add Org2 to the list of participating organizations. You can see the Org2 MSP ID has been added to the list of `"organizations"` in the updated auction returned by the application:
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```
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*** Result: Auction: {
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"objectType": "auction",
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"item": "tickets",
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"seller": "x509::CN=seller,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US",
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"quantity": 100,
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"organizations": [
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"Org1MSP",
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"Org2MSP"
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],
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"privateBids": {
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"\u0000bid\u0000auction1\u00005796569dae2e95242eadc5cf1cf8aa24f5ae072d801e7decb2547530de5a65e8\u0000": {
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"org": "Org1MSP",
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"hash": "598749480aa3af816a829455e1fdac25a44f31c2ae81f911f85d004f44dbbe6c"
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},
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"\u0000bid\u0000auction1\u00006630e1bb06e827a2b77023f63677fae8a0ad43126730e450d3252fa58eeb85b1\u0000": {
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"org": "Org1MSP",
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"hash": "2f7a62152627d69d73e31b62cd4731d32ecc277de0eef4d30b1235891298abf7"
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},
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"\u0000bid\u0000auction1\u0000d52ea4d9b4bc428d395db2d68323bc12cc9b5c1f8617900f459ccd41c38d3c0a\u0000": {
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"org": "Org2MSP",
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"hash": "bf1e9fb80ea3e29780fe13b4781b6dad28fa83b4b5db68bd7e90252875d152fb"
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}
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},
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"revealedBids": {},
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"winners": [],
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"price": 0,
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"status": "open",
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"auditor": true
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}
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```
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Now that a bid from Org2 has been added to the auction, any updates to the auction need to be endorsed by the Org2 peer. The applications will use the `"organizations"` field to specify which organizations need to endorse submitting a new bid, revealing a bid, or updating the auction status.
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### Bid as bidder4
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Bidder4 from Org2 would like to purchase 15 tickets for 60 dollars:
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```
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node bid.js org2 bidder4 auction1 15 60
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```
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Save the Bid ID returned by the application:
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```
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export BIDDER4_BID_ID=c6464f984bb01e639a46e58b94c496e8bbd829b5e4fa7ffcc150d9a565d45684
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```
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||||||
|
|
||||||
|
Add bidder4's bid to the auction:
|
||||||
|
```
|
||||||
|
node submitBid.js org2 bidder4 auction1 $BIDDER4_BID_ID
|
||||||
|
```
|
||||||
|
|
||||||
|
### Bid as bidder5
|
||||||
|
|
||||||
|
Bidder5 from Org2 will bid for 20 tickets at 60 dollars:
|
||||||
|
```
|
||||||
|
node bid.js org2 bidder5 auction1 20 60
|
||||||
|
```
|
||||||
|
|
||||||
|
Save the Bid ID returned by the application:
|
||||||
|
```
|
||||||
|
export BIDDER5_BID_ID=f4024ab09b4dacf0a636927414850dde2a2a5e8ec4601e2a0071f5c233248207
|
||||||
|
```
|
||||||
|
|
||||||
|
Add bidder5's bid to the auction:
|
||||||
|
```
|
||||||
|
node submitBid.js org2 bidder5 auction1 $BIDDER5_BID_ID
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Close the auction
|
||||||
|
|
||||||
|
Now that all five bidders have joined the auction, the seller would like to close the auction and allow buyers to reveal their bids. The seller identity that created the auction needs to submit the transaction:
|
||||||
|
```
|
||||||
|
node closeAuction.js org1 seller auction1
|
||||||
|
```
|
||||||
|
|
||||||
|
The application will query the auction to allow you to verify that the auction status has changed to closed.
|
||||||
|
|
||||||
|
## Reveal bids
|
||||||
|
|
||||||
|
After the auction is closed, bidders can try to win the auction by revealing their bids. The transaction to reveal a bid needs to pass four checks:
|
||||||
|
1. The auction is closed.
|
||||||
|
2. The transaction was submitted by the identity that created the bid.
|
||||||
|
3. The hash of the revealed bid matches the hash of the bid on the channel ledger. This confirms that the bid is the same as the bid that is stored in the private data collection.
|
||||||
|
4. The hash of the revealed bid matches the hash that was submitted to the auction. This confirms that the bid was not altered after the auction was closed.
|
||||||
|
|
||||||
|
Use the `revealBid.js` application to reveal the bid of Bidder1:
|
||||||
|
```
|
||||||
|
node revealBid.js org1 bidder1 auction1 $BIDDER1_BID_ID
|
||||||
|
```
|
||||||
|
|
||||||
|
The full bid details, including the quantity and price, are now visible:
|
||||||
|
```
|
||||||
|
*** Result: Auction: {
|
||||||
|
"objectType": "auction",
|
||||||
|
"item": "tickets",
|
||||||
|
"seller": "x509::CN=seller,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US",
|
||||||
|
"quantity": 100,
|
||||||
|
"organizations": [
|
||||||
|
"Org1MSP",
|
||||||
|
"Org2MSP"
|
||||||
|
],
|
||||||
|
"privateBids": {
|
||||||
|
"\u0000bid\u0000auction1\u00005796569dae2e95242eadc5cf1cf8aa24f5ae072d801e7decb2547530de5a65e8\u0000": {
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"hash": "598749480aa3af816a829455e1fdac25a44f31c2ae81f911f85d004f44dbbe6c"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u00006630e1bb06e827a2b77023f63677fae8a0ad43126730e450d3252fa58eeb85b1\u0000": {
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"hash": "2f7a62152627d69d73e31b62cd4731d32ecc277de0eef4d30b1235891298abf7"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u0000c6464f984bb01e639a46e58b94c496e8bbd829b5e4fa7ffcc150d9a565d45684\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "eefcadf8e9e5cb8322a6e642ab6d5512d62e6d68f37a72b00f5b0d9e580eddb9"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u0000d52ea4d9b4bc428d395db2d68323bc12cc9b5c1f8617900f459ccd41c38d3c0a\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "bf1e9fb80ea3e29780fe13b4781b6dad28fa83b4b5db68bd7e90252875d152fb"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u0000f4024ab09b4dacf0a636927414850dde2a2a5e8ec4601e2a0071f5c233248207\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "de82232141bac06ea3818146fb650dc9930d45b9ceab506ac66942b119eec094"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"revealedBids": {
|
||||||
|
"\u0000bid\u0000auction1\u00006630e1bb06e827a2b77023f63677fae8a0ad43126730e450d3252fa58eeb85b1\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 50,
|
||||||
|
"price": 80,
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"buyer": "x509::CN=bidder1,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"winners": [],
|
||||||
|
"price": 0,
|
||||||
|
"status": "closed",
|
||||||
|
"auditor": true
|
||||||
|
}
|
||||||
|
```
|
||||||
|
We will add three more bidders, the second bidder from Org1 and two bidders from Org2. Run the following commands to reveal the bidders:
|
||||||
|
```
|
||||||
|
node revealBid.js org1 bidder2 auction1 $BIDDER2_BID_ID
|
||||||
|
node revealBid.js org2 bidder4 auction1 $BIDDER4_BID_ID
|
||||||
|
node revealBid.js org2 bidder5 auction1 $BIDDER5_BID_ID
|
||||||
|
```
|
||||||
|
|
||||||
|
Let's try to end the auction using the seller identity and see what happens.
|
||||||
|
|
||||||
|
```
|
||||||
|
node endAuction.js org1 seller auction1
|
||||||
|
```
|
||||||
|
|
||||||
|
The output should look something like the following:
|
||||||
|
|
||||||
|
```
|
||||||
|
--> Submit the transaction to end the auction
|
||||||
|
2021-01-28T16:47:27.501Z - error: [DiscoveryHandler]: compareProposalResponseResults[undefined] - read/writes result sets do not match index=1
|
||||||
|
2021-01-28T16:47:27.503Z - error: [Transaction]: Error: No valid responses from any peers. Errors:
|
||||||
|
peer=undefined, status=grpc, message=Peer endorsements do not match
|
||||||
|
******** FAILED to submit bid: Error: No valid responses from any peers. Errors:
|
||||||
|
peer=undefined, status=grpc, message=Peer endorsements do not match
|
||||||
|
```
|
||||||
|
|
||||||
|
Instead of ending the auction, the transaction results in an endorsement policy failure. The end of the auction needs to be endorsed by Org2. Before endorsing the transaction, the Org2 peer queries its private data collection for any winning bids that have not yet been revealed. Because the price that would clear the auction with the currently revealed bids is lower than the bid of Bidder3, the Org2 peer refuses to endorse the transaction that would end the auction.
|
||||||
|
|
||||||
|
In order to end the auction, Org1 would either need to wait for Org2 to reveal the final bid or appeal to the auditor. Depending on if you created the organization with an auditor, you can end the auction with either set of steps.
|
||||||
|
|
||||||
|
## End the auction using an auditor
|
||||||
|
|
||||||
|
If Org2 is unable to endorse the transaction to end the auction, Org1 can ask the auditor to intervene. The following program gets an endorsement from the Org3 auditor and Org1 to end the auction. As a result, the transaction would meet the auditor component of the state based endorsement policy.
|
||||||
|
```
|
||||||
|
node endAuctionwithAuditor org1 seller auction1
|
||||||
|
```
|
||||||
|
|
||||||
|
Even though Org2 has not agreed to the end of the auction, the endorsement Org1 is sufficient to end the auction if the auditor agrees. As part of ending the auction, both Org1 and the auditor need to calculate the same price and the same set of winners. Each winning bidder is listed next to the quantity that was allocated to them.
|
||||||
|
```
|
||||||
|
*** Result: Auction: {
|
||||||
|
"objectType": "auction",
|
||||||
|
"item": "tickets",
|
||||||
|
"seller": "x509::CN=seller,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US",
|
||||||
|
"quantity": 100,
|
||||||
|
"organizations": [
|
||||||
|
"Org1MSP",
|
||||||
|
"Org2MSP"
|
||||||
|
],
|
||||||
|
"privateBids": {
|
||||||
|
"\u0000bid\u0000auction1\u00005796569dae2e95242eadc5cf1cf8aa24f5ae072d801e7decb2547530de5a65e8\u0000": {
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"hash": "598749480aa3af816a829455e1fdac25a44f31c2ae81f911f85d004f44dbbe6c"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u00006630e1bb06e827a2b77023f63677fae8a0ad43126730e450d3252fa58eeb85b1\u0000": {
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"hash": "2f7a62152627d69d73e31b62cd4731d32ecc277de0eef4d30b1235891298abf7"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u0000c6464f984bb01e639a46e58b94c496e8bbd829b5e4fa7ffcc150d9a565d45684\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "eefcadf8e9e5cb8322a6e642ab6d5512d62e6d68f37a72b00f5b0d9e580eddb9"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u0000d52ea4d9b4bc428d395db2d68323bc12cc9b5c1f8617900f459ccd41c38d3c0a\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "bf1e9fb80ea3e29780fe13b4781b6dad28fa83b4b5db68bd7e90252875d152fb"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u0000f4024ab09b4dacf0a636927414850dde2a2a5e8ec4601e2a0071f5c233248207\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "de82232141bac06ea3818146fb650dc9930d45b9ceab506ac66942b119eec094"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"revealedBids": {
|
||||||
|
"\u0000bid\u0000auction1\u00005796569dae2e95242eadc5cf1cf8aa24f5ae072d801e7decb2547530de5a65e8\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 40,
|
||||||
|
"price": 50,
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"buyer": "x509::CN=bidder2,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u00006630e1bb06e827a2b77023f63677fae8a0ad43126730e450d3252fa58eeb85b1\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 50,
|
||||||
|
"price": 80,
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"buyer": "x509::CN=bidder1,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u0000c6464f984bb01e639a46e58b94c496e8bbd829b5e4fa7ffcc150d9a565d45684\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 15,
|
||||||
|
"price": 60,
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"buyer": "x509::CN=bidder4,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u0000f4024ab09b4dacf0a636927414850dde2a2a5e8ec4601e2a0071f5c233248207\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 20,
|
||||||
|
"price": 60,
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"buyer": "x509::CN=bidder5,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"winners": [
|
||||||
|
{
|
||||||
|
"buyer": "x509::CN=bidder1,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US",
|
||||||
|
"quantity": 50
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"buyer": "x509::CN=bidder4,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK",
|
||||||
|
"quantity": 15
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"buyer": "x509::CN=bidder5,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK",
|
||||||
|
"quantity": 20
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"buyer": "x509::CN=bidder2,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US",
|
||||||
|
"quantity": 15
|
||||||
|
}
|
||||||
|
],
|
||||||
|
"price": 50,
|
||||||
|
"status": "ended",
|
||||||
|
"auditor": true
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
The auction allocates tickets to the highest bids first. Because all 100 tickets are sold after allocating tickets to the bid that was submitted at 50, 50 is the `"price"` that clears the auction.
|
||||||
|
|
||||||
|
## End the auction without an auditor
|
||||||
|
|
||||||
|
If we did not add an auditor to the auction, we need to add the remaining bid so that Org2 will endorse ending the auction.
|
||||||
|
```
|
||||||
|
node revealBid.js org2 bidder3 auction1 $BIDDER3_BID_ID
|
||||||
|
```
|
||||||
|
|
||||||
|
Now that all the winning bids have been revealed, we can submit the transaction to end the auction once more.
|
||||||
|
```
|
||||||
|
node endAuction org1 seller auction1
|
||||||
|
```
|
||||||
|
|
||||||
|
The transaction was successfully endorsed by both Org1 and Org2, who both calculated the same price and winners of the auction. Each winning bidder is listed next to the quantity that was allocated to them.
|
||||||
|
```
|
||||||
|
*** Result: Auction: {
|
||||||
|
"objectType": "auction",
|
||||||
|
"item": "tickets",
|
||||||
|
"seller": "x509::CN=seller,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US",
|
||||||
|
"quantity": 100,
|
||||||
|
"organizations": [
|
||||||
|
"Org1MSP",
|
||||||
|
"Org2MSP"
|
||||||
|
],
|
||||||
|
"privateBids": {
|
||||||
|
"\u0000bid\u0000auction1\u0000482b2a68fbbfae329b0b4bc9d70b90f3a55fdcbae5f5274dec34d438efb6847e\u0000": {
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"hash": "2f7a62152627d69d73e31b62cd4731d32ecc277de0eef4d30b1235891298abf7"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u000048d93017ac65cff0dd23406cc29918724fd84c8e7014eee30fd492fef760e6a4\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "bf1e9fb80ea3e29780fe13b4781b6dad28fa83b4b5db68bd7e90252875d152fb"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u00005ba4c856224cdc8209b0e42f30a757331e3fb8a8b660b64a55e1bcf688b745ad\u0000": {
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"hash": "598749480aa3af816a829455e1fdac25a44f31c2ae81f911f85d004f44dbbe6c"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u000063c8a192dae1332ae42af890f8a966fea2ae8365ca9746447e014a7c0494d64e\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "de82232141bac06ea3818146fb650dc9930d45b9ceab506ac66942b119eec094"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u000066ff6d8bbe81e98654fc417915808031d49e93cd8d7475f15317d801317254fa\u0000": {
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"hash": "eefcadf8e9e5cb8322a6e642ab6d5512d62e6d68f37a72b00f5b0d9e580eddb9"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"revealedBids": {
|
||||||
|
"\u0000bid\u0000auction1\u0000482b2a68fbbfae329b0b4bc9d70b90f3a55fdcbae5f5274dec34d438efb6847e\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 50,
|
||||||
|
"price": 80,
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"buyer": "x509::CN=bidder1,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u000048d93017ac65cff0dd23406cc29918724fd84c8e7014eee30fd492fef760e6a4\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 30,
|
||||||
|
"price": 70,
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"buyer": "x509::CN=bidder3,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u00005ba4c856224cdc8209b0e42f30a757331e3fb8a8b660b64a55e1bcf688b745ad\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 40,
|
||||||
|
"price": 50,
|
||||||
|
"org": "Org1MSP",
|
||||||
|
"buyer": "x509::CN=bidder2,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u000063c8a192dae1332ae42af890f8a966fea2ae8365ca9746447e014a7c0494d64e\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 20,
|
||||||
|
"price": 60,
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"buyer": "x509::CN=bidder5,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK"
|
||||||
|
},
|
||||||
|
"\u0000bid\u0000auction1\u000066ff6d8bbe81e98654fc417915808031d49e93cd8d7475f15317d801317254fa\u0000": {
|
||||||
|
"objectType": "bid",
|
||||||
|
"quantity": 15,
|
||||||
|
"price": 60,
|
||||||
|
"org": "Org2MSP",
|
||||||
|
"buyer": "x509::CN=bidder4,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"winners": [
|
||||||
|
{
|
||||||
|
"buyer": "x509::CN=bidder1,OU=client+OU=org1+OU=department1::CN=ca.org1.example.com,O=org1.example.com,L=Durham,ST=North Carolina,C=US",
|
||||||
|
"quantity": 50
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"buyer": "x509::CN=bidder3,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK",
|
||||||
|
"quantity": 30
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"buyer": "x509::CN=bidder4,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK",
|
||||||
|
"quantity": 15
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"buyer": "x509::CN=bidder5,OU=client+OU=org2+OU=department1::CN=ca.org2.example.com,O=org2.example.com,L=Hursley,ST=Hampshire,C=UK",
|
||||||
|
"quantity": 5
|
||||||
|
}
|
||||||
|
],
|
||||||
|
"price": 60,
|
||||||
|
"status": "ended",
|
||||||
|
"auditor": false
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
The auction allocates tickets to the highest bids first. Because all 100 tickets are sold after allocating tickets to the bids that were submitted at 60, 60 is the `"price"` that clears the auction. The first 80 tickets are allocated to Bidder1 and Bidder3. The remaining 20 tickers are allocated to Bidder4 and Bidder5. When bids are tied, the auction smart contract fills the smaller bids first. As a result, Bidder4 is awarded their full bid of 15 tickets, while Bidder5 is allocated the remaining 5 tickets.
|
||||||
|
|
||||||
|
## Clean up
|
||||||
|
|
||||||
|
When your are done using the auction smart contract, you can bring down the network and clean up the environment. In the `auction-dutch/application-javascript` directory, run the following command to remove the wallets used to run the applications:
|
||||||
|
```
|
||||||
|
rm -rf wallet
|
||||||
|
```
|
||||||
|
|
||||||
|
You can then navigate to the test network directory and bring down the network:
|
||||||
|
````
|
||||||
|
cd ../../test-network/
|
||||||
|
./network.sh down
|
||||||
|
````
|
||||||
98
auction-dutch/application-javascript/bid.js
Normal file
98
auction-dutch/application-javascript/bid.js
Normal file
|
|
@ -0,0 +1,98 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function bid (ccp, wallet, user, orgMSP, auctionID, quantity, price) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: get your client ID');
|
||||||
|
const buyer = await contract.evaluateTransaction('GetSubmittingClientIdentity');
|
||||||
|
console.log('*** Result: Buyer ID is ' + buyer.toString());
|
||||||
|
|
||||||
|
const bidData = { objectType: 'bid', quantity: parseInt(quantity), price: parseInt(price), org: orgMSP, buyer: buyer.toString() };
|
||||||
|
|
||||||
|
const statefulTxn = contract.createTransaction('Bid');
|
||||||
|
statefulTxn.setEndorsingOrganizations(orgMSP);
|
||||||
|
const tmapData = Buffer.from(JSON.stringify(bidData));
|
||||||
|
statefulTxn.setTransient({
|
||||||
|
bid: tmapData
|
||||||
|
});
|
||||||
|
|
||||||
|
const bidID = statefulTxn.getTransactionId();
|
||||||
|
|
||||||
|
console.log('\n--> Submit Transaction: Create the bid that is stored in your private data collection of your organization');
|
||||||
|
await statefulTxn.submit(auctionID);
|
||||||
|
console.log('*** Result: committed');
|
||||||
|
console.log('*** Result ***SAVE THIS VALUE*** BidID: ' + bidID.toString());
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: read the bid that was just created');
|
||||||
|
const result = await contract.evaluateTransaction('QueryBid', auctionID, bidID);
|
||||||
|
console.log('*** Result: Bid: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
if (error.stack) {
|
||||||
|
console.error(error.stack);
|
||||||
|
}
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined ||
|
||||||
|
process.argv[4] === undefined || process.argv[5] === undefined ||
|
||||||
|
process.argv[6] === undefined) {
|
||||||
|
console.log('Usage: node bid.js org userID auctionID quantity price');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
const quantity = process.argv[5];
|
||||||
|
const price = process.argv[6];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const orgMSP = 'Org1MSP';
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await bid(ccp, wallet, user, orgMSP, auctionID, quantity, price);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const orgMSP = 'Org2MSP';
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await bid(ccp, wallet, user, orgMSP, auctionID, quantity, price);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node bid.js org userID auctionID quantity price');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
90
auction-dutch/application-javascript/closeAuction.js
Normal file
90
auction-dutch/application-javascript/closeAuction.js
Normal file
|
|
@ -0,0 +1,90 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function closeAuction (ccp, wallet, user, auctionID) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
// Query the auction to get the list of endorsing orgs.
|
||||||
|
// console.log('\n--> Evaluate Transaction: query the auction you want to close');
|
||||||
|
const auctionString = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
// console.log('*** Result: Bid: ' + prettyJSONString(auctionString.toString()));
|
||||||
|
const auctionJSON = JSON.parse(auctionString);
|
||||||
|
|
||||||
|
const statefulTxn = contract.createTransaction('CloseAuction');
|
||||||
|
|
||||||
|
if (auctionJSON.organizations.length === 2) {
|
||||||
|
statefulTxn.setEndorsingOrganizations(auctionJSON.organizations[0], auctionJSON.organizations[1]);
|
||||||
|
} else {
|
||||||
|
statefulTxn.setEndorsingOrganizations(auctionJSON.organizations[0]);
|
||||||
|
}
|
||||||
|
|
||||||
|
console.log('\n--> Submit Transaction: close auction');
|
||||||
|
await statefulTxn.submit(auctionID);
|
||||||
|
console.log('*** Result: committed');
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: query the updated auction');
|
||||||
|
const result = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
console.log('*** Result: Auction: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined || process.argv[4] === undefined) {
|
||||||
|
console.log('Usage: node closeAuction.js org userID auctionID');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await closeAuction(ccp, wallet, user, auctionID);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await closeAuction(ccp, wallet, user, auctionID);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node closeAuction.js org userID auctionID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
if (error.stack) {
|
||||||
|
console.error(error.stack);
|
||||||
|
}
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
78
auction-dutch/application-javascript/createAuction.js
Normal file
78
auction-dutch/application-javascript/createAuction.js
Normal file
|
|
@ -0,0 +1,78 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function createAuction (ccp, wallet, user, auctionID, item, quantity, auditor) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
const statefulTxn = contract.createTransaction('CreateAuction');
|
||||||
|
|
||||||
|
console.log('\n--> Submit Transaction: Propose a new auction');
|
||||||
|
await statefulTxn.submit(auctionID, item, parseInt(quantity), auditor);
|
||||||
|
console.log('*** Result: committed');
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: query the auction that was just created');
|
||||||
|
const result = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
console.log('*** Result: Auction: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined ||
|
||||||
|
process.argv[4] === undefined || process.argv[5] === undefined ||
|
||||||
|
process.argv[6] === undefined) {
|
||||||
|
console.log('Usage: node createAuction.js org userID auctionID item quantity');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
const item = process.argv[5];
|
||||||
|
const quantity = process.argv[6];
|
||||||
|
const auditor = process.argv[7];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await createAuction(ccp, wallet, user, auctionID, item, quantity, auditor);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await createAuction(ccp, wallet, user, auctionID, item, quantity, auditor);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node createAuction.js org userID auctionID item quantity');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
91
auction-dutch/application-javascript/endAuction.js
Normal file
91
auction-dutch/application-javascript/endAuction.js
Normal file
|
|
@ -0,0 +1,91 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function endAuction (ccp, wallet, user, auctionID) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
// Query the auction to get the list of endorsing orgs.
|
||||||
|
// console.log('\n--> Evaluate Transaction: query the auction you want to end');
|
||||||
|
const auctionString = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
// console.log('*** Result: Bid: ' + prettyJSONString(auctionString.toString()));
|
||||||
|
const auctionJSON = JSON.parse(auctionString);
|
||||||
|
|
||||||
|
const statefulTxn = contract.createTransaction('EndAuction');
|
||||||
|
|
||||||
|
if (auctionJSON.organizations.length === 2) {
|
||||||
|
statefulTxn.setEndorsingOrganizations(auctionJSON.organizations[0], auctionJSON.organizations[1]);
|
||||||
|
} else {
|
||||||
|
statefulTxn.setEndorsingOrganizations(auctionJSON.organizations[0]);
|
||||||
|
}
|
||||||
|
|
||||||
|
console.log('\n--> Submit the transaction to end the auction');
|
||||||
|
await statefulTxn.submit(auctionID);
|
||||||
|
console.log('*** Result: committed');
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: query the updated auction');
|
||||||
|
const result = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
console.log('*** Result: Auction: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined ||
|
||||||
|
process.argv[4] === undefined) {
|
||||||
|
console.log('Usage: node endAuction.js org userID auctionID');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await endAuction(ccp, wallet, user, auctionID);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await endAuction(ccp, wallet, user, auctionID);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node endAuction.js org userID auctionID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
if (error.stack) {
|
||||||
|
console.error(error.stack);
|
||||||
|
}
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
|
|
@ -0,0 +1,83 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function endAuction (ccp, wallet, org, user, auctionID) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
const statefulTxn = contract.createTransaction('EndAuction');
|
||||||
|
|
||||||
|
statefulTxn.setEndorsingOrganizations(org, 'Org3MSP');
|
||||||
|
|
||||||
|
console.log('\n--> Submit the transaction to end the auction');
|
||||||
|
await statefulTxn.submit(auctionID);
|
||||||
|
console.log('*** Result: committed');
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: query the updated auction');
|
||||||
|
const result = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
console.log('*** Result: Auction: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined ||
|
||||||
|
process.argv[4] === undefined) {
|
||||||
|
console.log('Usage: node endAuction.js org userID auctionID');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const orgMSP = 'Org1MSP';
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await endAuction(ccp, wallet, orgMSP, user, auctionID);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const orgMSP = 'Org2MSP';
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await endAuction(ccp, wallet, orgMSP, user, auctionID);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node endAuction.js org userID auctionID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
if (error.stack) {
|
||||||
|
console.error(error.stack);
|
||||||
|
}
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
62
auction-dutch/application-javascript/enrollAdmin.js
Normal file
62
auction-dutch/application-javascript/enrollAdmin.js
Normal file
|
|
@ -0,0 +1,62 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Wallets } = require('fabric-network');
|
||||||
|
const FabricCAServices = require('fabric-ca-client');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCAClient, enrollAdmin } = require('../../test-application/javascript/CAUtil.js');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const mspOrg1 = 'Org1MSP';
|
||||||
|
const mspOrg2 = 'Org2MSP';
|
||||||
|
|
||||||
|
async function connectToOrg1CA () {
|
||||||
|
console.log('\n--> Enrolling the Org1 CA admin');
|
||||||
|
const ccpOrg1 = buildCCPOrg1();
|
||||||
|
const caOrg1Client = buildCAClient(FabricCAServices, ccpOrg1, 'ca.org1.example.com');
|
||||||
|
|
||||||
|
const walletPathOrg1 = path.join(__dirname, 'wallet/org1');
|
||||||
|
const walletOrg1 = await buildWallet(Wallets, walletPathOrg1);
|
||||||
|
|
||||||
|
await enrollAdmin(caOrg1Client, walletOrg1, mspOrg1);
|
||||||
|
}
|
||||||
|
|
||||||
|
async function connectToOrg2CA () {
|
||||||
|
console.log('\n--> Enrolling the Org2 CA admin');
|
||||||
|
const ccpOrg2 = buildCCPOrg2();
|
||||||
|
const caOrg2Client = buildCAClient(FabricCAServices, ccpOrg2, 'ca.org2.example.com');
|
||||||
|
|
||||||
|
const walletPathOrg2 = path.join(__dirname, 'wallet/org2');
|
||||||
|
const walletOrg2 = await buildWallet(Wallets, walletPathOrg2);
|
||||||
|
|
||||||
|
await enrollAdmin(caOrg2Client, walletOrg2, mspOrg2);
|
||||||
|
}
|
||||||
|
async function main () {
|
||||||
|
if (process.argv[2] === undefined) {
|
||||||
|
console.log('Usage: node enrollAdmin.js Org');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
|
||||||
|
try {
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
await connectToOrg1CA();
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
await connectToOrg2CA();
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node registerUser.js org userID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`Error in enrolling admin: ${error}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
23
auction-dutch/application-javascript/package.json
Normal file
23
auction-dutch/application-javascript/package.json
Normal file
|
|
@ -0,0 +1,23 @@
|
||||||
|
{
|
||||||
|
"name": "auction",
|
||||||
|
"version": "1.0.0",
|
||||||
|
"description": "auction application implemented in JavaScript",
|
||||||
|
"engines": {
|
||||||
|
"node": ">=12",
|
||||||
|
"npm": ">=5"
|
||||||
|
},
|
||||||
|
"engineStrict": true,
|
||||||
|
"author": "Hyperledger",
|
||||||
|
"license": "Apache-2.0",
|
||||||
|
"dependencies": {
|
||||||
|
"fabric-ca-client": "^2.2.4",
|
||||||
|
"fabric-network": "^2.2.4"
|
||||||
|
},
|
||||||
|
"devDependencies": {
|
||||||
|
"eslint": "^7.20.0",
|
||||||
|
"eslint-config-standard": "^16.0.2",
|
||||||
|
"eslint-plugin-import": "^2.22.1",
|
||||||
|
"eslint-plugin-node": "^11.1.0",
|
||||||
|
"eslint-plugin-promise": "^4.3.1"
|
||||||
|
}
|
||||||
|
}
|
||||||
68
auction-dutch/application-javascript/queryAuction.js
Normal file
68
auction-dutch/application-javascript/queryAuction.js
Normal file
|
|
@ -0,0 +1,68 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function queryAuction (ccp, wallet, user, auctionID) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: query the auction');
|
||||||
|
const result = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
console.log('*** Result: Auction: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined ||
|
||||||
|
process.argv[4] === undefined) {
|
||||||
|
console.log('Usage: node queryAuction.js org userID auctionID');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await queryAuction(ccp, wallet, user, auctionID);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await queryAuction(ccp, wallet, user, auctionID);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node queryAuction.js org userID auctionID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
69
auction-dutch/application-javascript/queryBid.js
Normal file
69
auction-dutch/application-javascript/queryBid.js
Normal file
|
|
@ -0,0 +1,69 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function queryBid (ccp, wallet, user, auctionID, bidID) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: read bid from private data store');
|
||||||
|
const result = await contract.evaluateTransaction('QueryBid', auctionID, bidID);
|
||||||
|
console.log('*** Result: Bid: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined ||
|
||||||
|
process.argv[4] === undefined || process.argv[5] === undefined) {
|
||||||
|
console.log('Usage: node bid.js org userID auctionID bidID');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
const bidID = process.argv[5];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await queryBid(ccp, wallet, user, auctionID, bidID);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await queryBid(ccp, wallet, user, auctionID, bidID);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node bid.js org userID auctionID bidID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
63
auction-dutch/application-javascript/registerEnrollUser.js
Normal file
63
auction-dutch/application-javascript/registerEnrollUser.js
Normal file
|
|
@ -0,0 +1,63 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Wallets } = require('fabric-network');
|
||||||
|
const FabricCAServices = require('fabric-ca-client');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCAClient, registerAndEnrollUser } = require('../../test-application/javascript/CAUtil.js');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const mspOrg1 = 'Org1MSP';
|
||||||
|
const mspOrg2 = 'Org2MSP';
|
||||||
|
|
||||||
|
async function connectToOrg1CA (UserID) {
|
||||||
|
console.log('\n--> Register and enrolling new user');
|
||||||
|
const ccpOrg1 = buildCCPOrg1();
|
||||||
|
const caOrg1Client = buildCAClient(FabricCAServices, ccpOrg1, 'ca.org1.example.com');
|
||||||
|
|
||||||
|
const walletPathOrg1 = path.join(__dirname, 'wallet/org1');
|
||||||
|
const walletOrg1 = await buildWallet(Wallets, walletPathOrg1);
|
||||||
|
|
||||||
|
await registerAndEnrollUser(caOrg1Client, walletOrg1, mspOrg1, UserID, 'org1.department1');
|
||||||
|
}
|
||||||
|
|
||||||
|
async function connectToOrg2CA (UserID) {
|
||||||
|
console.log('\n--> Register and enrolling new user');
|
||||||
|
const ccpOrg2 = buildCCPOrg2();
|
||||||
|
const caOrg2Client = buildCAClient(FabricCAServices, ccpOrg2, 'ca.org2.example.com');
|
||||||
|
|
||||||
|
const walletPathOrg2 = path.join(__dirname, 'wallet/org2');
|
||||||
|
const walletOrg2 = await buildWallet(Wallets, walletPathOrg2);
|
||||||
|
|
||||||
|
await registerAndEnrollUser(caOrg2Client, walletOrg2, mspOrg2, UserID, 'org2.department1');
|
||||||
|
}
|
||||||
|
async function main () {
|
||||||
|
if (process.argv[2] === undefined && process.argv[3] === undefined) {
|
||||||
|
console.log('Usage: node registerEnrollUser.js org userID');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const userId = process.argv[3];
|
||||||
|
|
||||||
|
try {
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
await connectToOrg1CA(userId);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
await connectToOrg2CA(userId);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node registerEnrollUser.js org userID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`Error in enrolling admin: ${error}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
100
auction-dutch/application-javascript/revealBid.js
Normal file
100
auction-dutch/application-javascript/revealBid.js
Normal file
|
|
@ -0,0 +1,100 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function addBid (ccp, wallet, user, auctionID, bidID) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: read your bid');
|
||||||
|
const bidString = await contract.evaluateTransaction('QueryBid', auctionID, bidID);
|
||||||
|
const bidJSON = JSON.parse(bidString);
|
||||||
|
|
||||||
|
// console.log('\n--> Evaluate Transaction: query the auction you want to join');
|
||||||
|
const auctionString = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
// console.log('*** Result: Bid: ' + prettyJSONString(auctionString.toString()));
|
||||||
|
const auctionJSON = JSON.parse(auctionString);
|
||||||
|
|
||||||
|
const bidData = { objectType: 'bid', quantity: parseInt(bidJSON.quantity), price: parseInt(bidJSON.price), org: bidJSON.org, buyer: bidJSON.buyer };
|
||||||
|
console.log('*** Result: Bid: ' + JSON.stringify(bidData, null, 2));
|
||||||
|
|
||||||
|
const statefulTxn = contract.createTransaction('RevealBid');
|
||||||
|
const tmapData = Buffer.from(JSON.stringify(bidData));
|
||||||
|
statefulTxn.setTransient({
|
||||||
|
bid: tmapData
|
||||||
|
});
|
||||||
|
|
||||||
|
if (auctionJSON.organizations.length === 2) {
|
||||||
|
statefulTxn.setEndorsingOrganizations(auctionJSON.organizations[0], auctionJSON.organizations[1]);
|
||||||
|
} else {
|
||||||
|
statefulTxn.setEndorsingOrganizations(auctionJSON.organizations[0]);
|
||||||
|
}
|
||||||
|
|
||||||
|
await statefulTxn.submit(auctionID, bidID);
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: query the auction to see that our bid was added');
|
||||||
|
const result = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
console.log('*** Result: Auction: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined ||
|
||||||
|
process.argv[4] === undefined || process.argv[5] === undefined) {
|
||||||
|
console.log('Usage: node revealBid.js org userID auctionID bidID');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
const bidID = process.argv[5];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await addBid(ccp, wallet, user, auctionID, bidID);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await addBid(ccp, wallet, user, auctionID, bidID);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node revealBid.js org userID auctionID bidID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
if (error.stack) {
|
||||||
|
console.error(error.stack);
|
||||||
|
}
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
89
auction-dutch/application-javascript/submitBid.js
Normal file
89
auction-dutch/application-javascript/submitBid.js
Normal file
|
|
@ -0,0 +1,89 @@
|
||||||
|
/*
|
||||||
|
* Copyright IBM Corp. All Rights Reserved.
|
||||||
|
*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
const { Gateway, Wallets } = require('fabric-network');
|
||||||
|
const path = require('path');
|
||||||
|
const { buildCCPOrg1, buildCCPOrg2, buildWallet, prettyJSONString } = require('../../test-application/javascript/AppUtil.js');
|
||||||
|
|
||||||
|
const myChannel = 'mychannel';
|
||||||
|
const myChaincodeName = 'auction';
|
||||||
|
|
||||||
|
async function submitBid (ccp, wallet, user, auctionID, bidID) {
|
||||||
|
try {
|
||||||
|
const gateway = new Gateway();
|
||||||
|
// connect using Discovery enabled
|
||||||
|
|
||||||
|
await gateway.connect(ccp,
|
||||||
|
{ wallet: wallet, identity: user, discovery: { enabled: true, asLocalhost: true } });
|
||||||
|
|
||||||
|
const network = await gateway.getNetwork(myChannel);
|
||||||
|
const contract = network.getContract(myChaincodeName);
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: query the auction you want to join');
|
||||||
|
const auctionString = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
const auctionJSON = JSON.parse(auctionString);
|
||||||
|
|
||||||
|
const statefulTxn = contract.createTransaction('SubmitBid');
|
||||||
|
|
||||||
|
if (auctionJSON.organizations.length === 2) {
|
||||||
|
statefulTxn.setEndorsingOrganizations(auctionJSON.organizations[0], auctionJSON.organizations[1]);
|
||||||
|
} else {
|
||||||
|
statefulTxn.setEndorsingOrganizations(auctionJSON.organizations[0]);
|
||||||
|
}
|
||||||
|
|
||||||
|
console.log('\n--> Submit Transaction: add bid to the auction');
|
||||||
|
await statefulTxn.submit(auctionID, bidID);
|
||||||
|
|
||||||
|
console.log('\n--> Evaluate Transaction: query the auction to see that our bid was added');
|
||||||
|
const result = await contract.evaluateTransaction('QueryAuction', auctionID);
|
||||||
|
console.log('*** Result: Auction: ' + prettyJSONString(result.toString()));
|
||||||
|
|
||||||
|
gateway.disconnect();
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to submit bid: ${error}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function main () {
|
||||||
|
try {
|
||||||
|
if (process.argv[2] === undefined || process.argv[3] === undefined ||
|
||||||
|
process.argv[4] === undefined || process.argv[5] === undefined) {
|
||||||
|
console.log('Usage: node submitBid.js org userID auctionID bidID');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const org = process.argv[2];
|
||||||
|
const user = process.argv[3];
|
||||||
|
const auctionID = process.argv[4];
|
||||||
|
const bidID = process.argv[5];
|
||||||
|
|
||||||
|
if (org === 'Org1' || org === 'org1') {
|
||||||
|
const ccp = buildCCPOrg1();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org1');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await submitBid(ccp, wallet, user, auctionID, bidID);
|
||||||
|
} else if (org === 'Org2' || org === 'org2') {
|
||||||
|
const ccp = buildCCPOrg2();
|
||||||
|
const walletPath = path.join(__dirname, 'wallet/org2');
|
||||||
|
const wallet = await buildWallet(Wallets, walletPath);
|
||||||
|
await submitBid(ccp, wallet, user, auctionID, bidID);
|
||||||
|
} else {
|
||||||
|
console.log('Usage: node submitBid.js org userID auctionID bidID');
|
||||||
|
console.log('Org must be Org1 or Org2');
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
console.error(`******** FAILED to run the application: ${error}`);
|
||||||
|
if (error.stack) {
|
||||||
|
console.error(error.stack);
|
||||||
|
}
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
main();
|
||||||
10
auction-dutch/chaincode-go-auditor/go.mod
Normal file
10
auction-dutch/chaincode-go-auditor/go.mod
Normal file
|
|
@ -0,0 +1,10 @@
|
||||||
|
module github.com/hyperledger/fabric-samples/auction/dutch-auction/chaincode-go-auditor
|
||||||
|
|
||||||
|
go 1.14
|
||||||
|
|
||||||
|
require (
|
||||||
|
github.com/golang/protobuf v1.4.3
|
||||||
|
github.com/hyperledger/fabric-chaincode-go v0.0.0-20201119163726-f8ef75b17719
|
||||||
|
github.com/hyperledger/fabric-contract-api-go v1.1.1
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20210127161553-4f432a78f286
|
||||||
|
)
|
||||||
166
auction-dutch/chaincode-go-auditor/go.sum
Normal file
166
auction-dutch/chaincode-go-auditor/go.sum
Normal file
|
|
@ -0,0 +1,166 @@
|
||||||
|
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
|
||||||
|
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
|
||||||
|
github.com/DATA-DOG/go-txdb v0.1.3/go.mod h1:DhAhxMXZpUJVGnT+p9IbzJoRKvlArO2pkHjnGX7o0n0=
|
||||||
|
github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
|
||||||
|
github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
|
||||||
|
github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
|
||||||
|
github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
|
||||||
|
github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
|
||||||
|
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
|
||||||
|
github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
|
||||||
|
github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
|
||||||
|
github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
|
||||||
|
github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
|
||||||
|
github.com/cucumber/godog v0.8.0/go.mod h1:Cp3tEV1LRAyH/RuCThcxHS/+9ORZ+FMzPva2AZ5Ki+A=
|
||||||
|
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||||
|
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||||
|
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||||
|
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
|
||||||
|
github.com/go-openapi/jsonpointer v0.19.2/go.mod h1:3akKfEdA7DF1sugOqz1dVQHBcuDBPKZGEoHC/NkiQRg=
|
||||||
|
github.com/go-openapi/jsonpointer v0.19.3 h1:gihV7YNZK1iK6Tgwwsxo2rJbD1GTbdm72325Bq8FI3w=
|
||||||
|
github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
|
||||||
|
github.com/go-openapi/jsonreference v0.19.2 h1:o20suLFB4Ri0tuzpWtyHlh7E7HnkqTNLq6aR6WVNS1w=
|
||||||
|
github.com/go-openapi/jsonreference v0.19.2/go.mod h1:jMjeRr2HHw6nAVajTXJ4eiUwohSTlpa0o73RUL1owJc=
|
||||||
|
github.com/go-openapi/spec v0.19.4 h1:ixzUSnHTd6hCemgtAJgluaTSGYpLNpJY4mA2DIkdOAo=
|
||||||
|
github.com/go-openapi/spec v0.19.4/go.mod h1:FpwSN1ksY1eteniUU7X0N/BgJ7a4WvBFVA8Lj9mJglo=
|
||||||
|
github.com/go-openapi/swag v0.19.2/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
|
||||||
|
github.com/go-openapi/swag v0.19.5 h1:lTz6Ys4CmqqCQmZPBlbQENR1/GucA2bzYTE12Pw4tFY=
|
||||||
|
github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
|
||||||
|
github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
|
||||||
|
github.com/gobuffalo/envy v1.7.0 h1:GlXgaiBkmrYMHco6t4j7SacKO4XUjvh5pwXh0f4uxXU=
|
||||||
|
github.com/gobuffalo/envy v1.7.0/go.mod h1:n7DRkBerg/aorDM8kbduw5dN3oXGswK5liaSCx4T5NI=
|
||||||
|
github.com/gobuffalo/logger v1.0.0/go.mod h1:2zbswyIUa45I+c+FLXuWl9zSWEiVuthsk8ze5s8JvPs=
|
||||||
|
github.com/gobuffalo/packd v0.3.0 h1:eMwymTkA1uXsqxS0Tpoop3Lc0u3kTfiMBE6nKtQU4g4=
|
||||||
|
github.com/gobuffalo/packd v0.3.0/go.mod h1:zC7QkmNkYVGKPw4tHpBQ+ml7W/3tIebgeo1b36chA3Q=
|
||||||
|
github.com/gobuffalo/packr v1.30.1 h1:hu1fuVR3fXEZR7rXNW3h8rqSML8EVAf6KNm0NKO/wKg=
|
||||||
|
github.com/gobuffalo/packr v1.30.1/go.mod h1:ljMyFO2EcrnzsHsN99cvbq055Y9OhRrIaviy289eRuk=
|
||||||
|
github.com/gobuffalo/packr/v2 v2.5.1/go.mod h1:8f9c96ITobJlPzI44jj+4tHnEKNt0xXWSVlXRN9X1Iw=
|
||||||
|
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
|
||||||
|
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
|
||||||
|
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
|
||||||
|
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||||
|
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||||
|
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
|
||||||
|
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
|
||||||
|
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
|
||||||
|
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
|
||||||
|
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
|
||||||
|
github.com/golang/protobuf v1.4.3 h1:JjCZWpVbqXDqFVmTfYWEVTMIYrL/NPdPSCHPJ0T/raM=
|
||||||
|
github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
|
||||||
|
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
|
||||||
|
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
|
||||||
|
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
|
||||||
|
github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
|
||||||
|
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||||
|
github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
|
||||||
|
github.com/hyperledger/fabric-chaincode-go v0.0.0-20200424173110-d7076418f212/go.mod h1:N7H3sA7Tx4k/YzFq7U0EPdqJtqvM4Kild0JoCc7C0Dc=
|
||||||
|
github.com/hyperledger/fabric-chaincode-go v0.0.0-20201119163726-f8ef75b17719 h1:FQ9AMLVSFt5QW2YBLraXW5V4Au6aFFpSl4xKFARM58Y=
|
||||||
|
github.com/hyperledger/fabric-chaincode-go v0.0.0-20201119163726-f8ef75b17719/go.mod h1:N7H3sA7Tx4k/YzFq7U0EPdqJtqvM4Kild0JoCc7C0Dc=
|
||||||
|
github.com/hyperledger/fabric-contract-api-go v1.1.1 h1:gDhOC18gjgElNZ85kFWsbCQq95hyUP/21n++m0Sv6B0=
|
||||||
|
github.com/hyperledger/fabric-contract-api-go v1.1.1/go.mod h1:+39cWxbh5py3NtXpRA63rAH7NzXyED+QJx1EZr0tJPo=
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20190919234611-2a87503ac7c9/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20200424173316-dd554ba3746e/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20210127161553-4f432a78f286 h1:cFLrvWUprlCbVixFkaeONNlUtbsjv3c20ujb4RJFBl8=
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20210127161553-4f432a78f286/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
|
||||||
|
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
|
||||||
|
github.com/joho/godotenv v1.3.0 h1:Zjp+RcGpHhGlrMbJzXTrZZPrWj+1vfm90La1wgB6Bhc=
|
||||||
|
github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqxOKXbg=
|
||||||
|
github.com/karrick/godirwalk v1.10.12/go.mod h1:RoGL9dQei4vP9ilrpETWE8CLOZ1kiN0LhBygSwrAsHA=
|
||||||
|
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
|
||||||
|
github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
|
||||||
|
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
|
||||||
|
github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs=
|
||||||
|
github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
|
||||||
|
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
||||||
|
github.com/kr/pty v1.1.5/go.mod h1:9r2w37qlBe7rQ6e1fg1S/9xpWHSnaqNdHD3WcMdbPDA=
|
||||||
|
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
|
||||||
|
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
|
||||||
|
github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
|
||||||
|
github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
|
||||||
|
github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e h1:hB2xlXdHp/pmPZq0y3QnmWAArdw9PqbmotexnWx/FU8=
|
||||||
|
github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
|
||||||
|
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
|
||||||
|
github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
|
||||||
|
github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
|
||||||
|
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||||
|
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||||
|
github.com/rogpeppe/go-internal v1.1.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
|
||||||
|
github.com/rogpeppe/go-internal v1.3.0 h1:RR9dF3JtopPvtkroDZuVD7qquD0bnHlKSqaQhgwt8yk=
|
||||||
|
github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
|
||||||
|
github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
|
||||||
|
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
|
||||||
|
github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
|
||||||
|
github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
|
||||||
|
github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU=
|
||||||
|
github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
|
||||||
|
github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
|
||||||
|
github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
|
||||||
|
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||||
|
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||||
|
github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
|
||||||
|
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
|
||||||
|
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
|
||||||
|
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
|
||||||
|
github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
|
||||||
|
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
|
||||||
|
github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
|
||||||
|
github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f h1:J9EGpcZtP0E/raorCMxlFGSTBrsSlaDGf3jU/qvAE2c=
|
||||||
|
github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f/go.mod h1:N2zxlSyiKSe5eX1tZViRH5QA0qijqEDrYZiPEAiq3wU=
|
||||||
|
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 h1:EzJWgHovont7NscjpAxXsDA8S8BMYve8Y5+7cuRE7R0=
|
||||||
|
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
|
||||||
|
github.com/xeipuuv/gojsonschema v1.2.0 h1:LhYJRs+L4fBtjZUfuSZIKGeVu0QRy8e5Xi7D17UxZ74=
|
||||||
|
github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
|
||||||
|
github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
|
||||||
|
golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
|
||||||
|
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||||
|
golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||||
|
golang.org/x/crypto v0.0.0-20190621222207-cc06ce4a13d4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||||
|
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
|
||||||
|
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||||
|
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||||
|
golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
|
||||||
|
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||||
|
golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 h1:k7pJ2yAPLPgbskkFdhRCsA77k2fySZ1zf2zCjvQCiIM=
|
||||||
|
golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||||
|
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
|
||||||
|
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||||
|
golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||||
|
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||||
|
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20190515120540-06a5c4944438/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20190616124812-15dcb6c0061f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20190710143415-6ec70d6a5542 h1:6ZQFf1D2YYDDI7eSwW8adlkkavTB9sw5I24FVtEvNUQ=
|
||||||
|
golang.org/x/sys v0.0.0-20190710143415-6ec70d6a5542/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||||
|
golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
|
||||||
|
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
|
||||||
|
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||||
|
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
|
||||||
|
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
|
||||||
|
golang.org/x/tools v0.0.0-20190614205625-5aca471b1d59/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
|
||||||
|
golang.org/x/tools v0.0.0-20190624180213-70d37148ca0c/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
|
||||||
|
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
|
||||||
|
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||||
|
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
|
||||||
|
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
|
||||||
|
google.golang.org/genproto v0.0.0-20180831171423-11092d34479b h1:lohp5blsw53GBXtLyLNaTXPXS9pJ1tiTw61ZHUoE9Qw=
|
||||||
|
google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
|
||||||
|
google.golang.org/grpc v1.23.0 h1:AzbTB6ux+okLTzP8Ru1Xs41C303zdcfEht7MQnYJt5A=
|
||||||
|
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
|
||||||
|
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
|
||||||
|
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
|
||||||
|
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
|
||||||
|
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
|
||||||
|
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
|
||||||
|
google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
|
||||||
|
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
|
||||||
|
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||||
|
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||||
|
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
|
||||||
|
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||||
|
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
|
||||||
|
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||||
|
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
|
||||||
|
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||||
|
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
|
||||||
446
auction-dutch/chaincode-go-auditor/smart-contract/auction.go
Normal file
446
auction-dutch/chaincode-go-auditor/smart-contract/auction.go
Normal file
|
|
@ -0,0 +1,446 @@
|
||||||
|
/*
|
||||||
|
SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
package auction
|
||||||
|
|
||||||
|
import (
|
||||||
|
"bytes"
|
||||||
|
"crypto/sha256"
|
||||||
|
"encoding/json"
|
||||||
|
"fmt"
|
||||||
|
"sort"
|
||||||
|
|
||||||
|
"github.com/hyperledger/fabric-contract-api-go/contractapi"
|
||||||
|
)
|
||||||
|
|
||||||
|
type SmartContract struct {
|
||||||
|
contractapi.Contract
|
||||||
|
}
|
||||||
|
|
||||||
|
// Auction data
|
||||||
|
type Auction struct {
|
||||||
|
Type string `json:"objectType"`
|
||||||
|
ItemSold string `json:"item"`
|
||||||
|
Seller string `json:"seller"`
|
||||||
|
Quantity int `json:"quantity"`
|
||||||
|
Orgs []string `json:"organizations"`
|
||||||
|
PrivateBids map[string]BidHash `json:"privateBids"`
|
||||||
|
RevealedBids map[string]FullBid `json:"revealedBids"`
|
||||||
|
Winners []Winners `json:"winners"`
|
||||||
|
Price int `json:"price"`
|
||||||
|
Status string `json:"status"`
|
||||||
|
Auditor bool `json:"auditor"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// FullBid is the structure of a revealed bid
|
||||||
|
type FullBid struct {
|
||||||
|
Type string `json:"objectType"`
|
||||||
|
Quantity int `json:"quantity"`
|
||||||
|
Price int `json:"price"`
|
||||||
|
Org string `json:"org"`
|
||||||
|
Buyer string `json:"buyer"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// BidHash is the structure of a private bid
|
||||||
|
type BidHash struct {
|
||||||
|
Org string `json:"org"`
|
||||||
|
Hash string `json:"hash"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// Winners stores the winners of the auction
|
||||||
|
type Winners struct {
|
||||||
|
Buyer string `json:"buyer"`
|
||||||
|
Quantity int `json:"quantity"`
|
||||||
|
}
|
||||||
|
|
||||||
|
const bidKeyType = "bid"
|
||||||
|
|
||||||
|
// SubmitBid is used by the bidder to add the hash of that bid stored in private data to the
|
||||||
|
// auction. Note that this function alters the auction in private state, and needs
|
||||||
|
// to meet the auction endorsement policy. Transaction ID is used identify the bid
|
||||||
|
func (s *SmartContract) SubmitBid(ctx contractapi.TransactionContextInterface, auctionID string, txID string) error {
|
||||||
|
|
||||||
|
// get the MSP ID of the bidder's org
|
||||||
|
clientOrgID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client MSP ID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the auction from public state
|
||||||
|
auction, err := s.QueryAuction(ctx, auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get auction from public state %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// the auction needs to be open for users to add their bid
|
||||||
|
status := auction.Status
|
||||||
|
if status != "open" {
|
||||||
|
return fmt.Errorf("cannot join closed or ended auction")
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the inplicit collection name of bidder's org
|
||||||
|
collection, err := getCollectionName(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get implicit collection name: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// use the transaction ID passed as a parameter to create composite bid key
|
||||||
|
bidKey, err := ctx.GetStub().CreateCompositeKey(bidKeyType, []string{auctionID, txID})
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to create composite key: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the hash of the bid if found in private collection
|
||||||
|
bidHash, err := ctx.GetStub().GetPrivateDataHash(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to read bid bash from collection: %v", err)
|
||||||
|
}
|
||||||
|
if bidHash == nil {
|
||||||
|
return fmt.Errorf("bid hash does not exist: %s", bidKey)
|
||||||
|
}
|
||||||
|
|
||||||
|
// store the hash along with the bidder's organization
|
||||||
|
newHash := BidHash{
|
||||||
|
Org: clientOrgID,
|
||||||
|
Hash: fmt.Sprintf("%x", bidHash),
|
||||||
|
}
|
||||||
|
|
||||||
|
bidders := make(map[string]BidHash)
|
||||||
|
bidders = auction.PrivateBids
|
||||||
|
bidders[bidKey] = newHash
|
||||||
|
auction.PrivateBids = bidders
|
||||||
|
|
||||||
|
// Add the bidding organization to the list of participating organization's if it is not already
|
||||||
|
orgs := auction.Orgs
|
||||||
|
if !(contains(orgs, clientOrgID)) {
|
||||||
|
newOrgs := append(orgs, clientOrgID)
|
||||||
|
auction.Orgs = newOrgs
|
||||||
|
|
||||||
|
err = setAssetStateBasedEndorsement(ctx, auctionID, newOrgs, auction.Auditor)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed setting state based endorsement for new organization: %v", err)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
newAuctionJSON, _ := json.Marshal(auction)
|
||||||
|
|
||||||
|
err = ctx.GetStub().PutState(auctionID, newAuctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to update auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// RevealBid is used by a bidder to reveal their bid after the auction is closed
|
||||||
|
func (s *SmartContract) RevealBid(ctx contractapi.TransactionContextInterface, auctionID string, txID string) error {
|
||||||
|
|
||||||
|
// get the MSP ID of the bidder's org
|
||||||
|
clientOrgID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client MSP ID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get bid from transient map
|
||||||
|
transientMap, err := ctx.GetStub().GetTransient()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("error getting transient: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
transientBidJSON, ok := transientMap["bid"]
|
||||||
|
if !ok {
|
||||||
|
return fmt.Errorf("bid key not found in the transient map")
|
||||||
|
}
|
||||||
|
|
||||||
|
// get implicit collection name of organization ID
|
||||||
|
collection, err := getCollectionName(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get implicit collection name: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// use transaction ID to create composit bid key
|
||||||
|
bidKey, err := ctx.GetStub().CreateCompositeKey(bidKeyType, []string{auctionID, txID})
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to create composite key: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get bid hash of bid if private bid on the public ledger
|
||||||
|
bidHash, err := ctx.GetStub().GetPrivateDataHash(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to read bid bash from collection: %v", err)
|
||||||
|
}
|
||||||
|
if bidHash == nil {
|
||||||
|
return fmt.Errorf("bid hash does not exist: %s", bidKey)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get auction from public state
|
||||||
|
auction, err := s.QueryAuction(ctx, auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get auction from public state %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// check that the bidders org is a participant in the auction
|
||||||
|
orgs := auction.Orgs
|
||||||
|
if !(contains(orgs, clientOrgID)) {
|
||||||
|
return fmt.Errorf("Particiant is not a member of the auction", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Complete a series of three checks before we add the bid to the auction
|
||||||
|
|
||||||
|
// check 1: check that the auction is closed. We cannot reveal an
|
||||||
|
// bid to an open auction
|
||||||
|
status := auction.Status
|
||||||
|
if status != "closed" {
|
||||||
|
return fmt.Errorf("cannot reveal bid for open or ended auction")
|
||||||
|
}
|
||||||
|
|
||||||
|
// check 2: check that hash of revealed bid matches hash of private bid
|
||||||
|
// on the public ledger. This checks that the bidder is telling the truth
|
||||||
|
// about the value of their bid
|
||||||
|
|
||||||
|
hash := sha256.New()
|
||||||
|
hash.Write(transientBidJSON)
|
||||||
|
calculatedBidJSONHash := hash.Sum(nil)
|
||||||
|
|
||||||
|
// verify that the hash of the passed immutable properties matches the on-chain hash
|
||||||
|
if !bytes.Equal(calculatedBidJSONHash, bidHash) {
|
||||||
|
return fmt.Errorf("hash %x for bid JSON %s does not match hash in auction: %x",
|
||||||
|
calculatedBidJSONHash,
|
||||||
|
transientBidJSON,
|
||||||
|
bidHash,
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
// check 3; check hash of relealed bid matches hash of private bid that was
|
||||||
|
// added earlier. This ensures that the bid has not changed since it
|
||||||
|
// was added to the auction
|
||||||
|
|
||||||
|
bidders := auction.PrivateBids
|
||||||
|
privateBidHashString := bidders[bidKey].Hash
|
||||||
|
|
||||||
|
onChainBidHashString := fmt.Sprintf("%x", bidHash)
|
||||||
|
if privateBidHashString != onChainBidHashString {
|
||||||
|
return fmt.Errorf("hash %s for bid JSON %s does not match hash in auction: %s, bidder must have changed bid",
|
||||||
|
privateBidHashString,
|
||||||
|
transientBidJSON,
|
||||||
|
onChainBidHashString,
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
// we can add the bid to the auction if all checks have passed
|
||||||
|
type transientBidInput struct {
|
||||||
|
Quantity int `json:"quantity"`
|
||||||
|
Price int `json:"price"`
|
||||||
|
Org string `json:"org"`
|
||||||
|
Buyer string `json:"buyer"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// unmarshal bid imput
|
||||||
|
var bidInput transientBidInput
|
||||||
|
err = json.Unmarshal(transientBidJSON, &bidInput)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to unmarshal JSON: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get ID of submitting client
|
||||||
|
clientID, err := s.GetSubmittingClientIdentity(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// marshal transient parameters and ID and MSPID into bid object
|
||||||
|
newBid := FullBid{
|
||||||
|
Type: bidKeyType,
|
||||||
|
Quantity: bidInput.Quantity,
|
||||||
|
Price: bidInput.Price,
|
||||||
|
Org: bidInput.Org,
|
||||||
|
Buyer: bidInput.Buyer,
|
||||||
|
}
|
||||||
|
|
||||||
|
// check 4: make sure that the transaction is being submitted is the bidder
|
||||||
|
if bidInput.Buyer != clientID {
|
||||||
|
return fmt.Errorf("Permission denied, client id %v is not the owner of the bid", clientID)
|
||||||
|
}
|
||||||
|
|
||||||
|
revealedBids := make(map[string]FullBid)
|
||||||
|
revealedBids = auction.RevealedBids
|
||||||
|
revealedBids[bidKey] = newBid
|
||||||
|
auction.RevealedBids = revealedBids
|
||||||
|
|
||||||
|
auctionJSON, _ := json.Marshal(auction)
|
||||||
|
|
||||||
|
// put auction with bid added back into state
|
||||||
|
err = ctx.GetStub().PutState(auctionID, auctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to update auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// CloseAuction can be used by the seller to close the auction. This prevents
|
||||||
|
// bids from being added to the auction, and allows users to reveal their bid
|
||||||
|
func (s *SmartContract) CloseAuction(ctx contractapi.TransactionContextInterface, auctionID string) error {
|
||||||
|
|
||||||
|
// get the MSP ID of the bidder's org
|
||||||
|
clientOrgID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client MSP ID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get auction from public state
|
||||||
|
auction, err := s.QueryAuction(ctx, auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get auction from public state %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// check that the bidders org is a participant in the auction
|
||||||
|
orgs := auction.Orgs
|
||||||
|
if !(contains(orgs, clientOrgID)) {
|
||||||
|
return fmt.Errorf("Particiant is not a member of the auction", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// the auction can only be closed by the seller
|
||||||
|
|
||||||
|
// get ID of submitting client
|
||||||
|
clientID, err := s.GetSubmittingClientIdentity(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
seller := auction.Seller
|
||||||
|
if seller != clientID {
|
||||||
|
return fmt.Errorf("auction can only be closed by seller: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
status := auction.Status
|
||||||
|
if status != "open" {
|
||||||
|
return fmt.Errorf("cannot close auction that is not open")
|
||||||
|
}
|
||||||
|
|
||||||
|
auction.Status = string("closed")
|
||||||
|
|
||||||
|
closedAuctionJSON, _ := json.Marshal(auction)
|
||||||
|
|
||||||
|
err = ctx.GetStub().PutState(auctionID, closedAuctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to close auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// EndAuction both changes the auction status to closed and calculates the winners
|
||||||
|
// of the auction
|
||||||
|
func (s *SmartContract) EndAuction(ctx contractapi.TransactionContextInterface, auctionID string) error {
|
||||||
|
|
||||||
|
// get the MSP ID of the bidder's org
|
||||||
|
clientOrgID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client MSP ID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get auction from public state
|
||||||
|
auction, err := s.QueryAuction(ctx, auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get auction from public state %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// check that the bidders org is a participant in the auction
|
||||||
|
orgs := auction.Orgs
|
||||||
|
if !(contains(orgs, clientOrgID)) {
|
||||||
|
return fmt.Errorf("Particiant is not a member of the auction", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check that the auction is being ended by the seller
|
||||||
|
|
||||||
|
// get ID of submitting client
|
||||||
|
clientID, err := s.GetSubmittingClientIdentity(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
seller := auction.Seller
|
||||||
|
if seller != clientID {
|
||||||
|
return fmt.Errorf("auction can only be ended by seller: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
status := auction.Status
|
||||||
|
if status != "closed" {
|
||||||
|
return fmt.Errorf("Can only end a closed auction")
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the list of revealed bids
|
||||||
|
|
||||||
|
revealedBidMap := auction.RevealedBids
|
||||||
|
if len(auction.RevealedBids) == 0 {
|
||||||
|
return fmt.Errorf("No bids have been revealed, cannot end auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// sort the map of revealed bids to make it easier to calculate winners
|
||||||
|
// if bids are tied, fill smaller bids first
|
||||||
|
var bidders []FullBid
|
||||||
|
|
||||||
|
for _, bid := range revealedBidMap {
|
||||||
|
bidders = append(bidders, bid)
|
||||||
|
}
|
||||||
|
|
||||||
|
sort.Slice(bidders, func(p, q int) bool {
|
||||||
|
if bidders[p].Price > bidders[q].Price {
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
if bidders[p].Price < bidders[q].Price {
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
return bidders[p].Quantity < bidders[q].Quantity
|
||||||
|
})
|
||||||
|
|
||||||
|
i := 0
|
||||||
|
remainingQuantity := auction.Quantity
|
||||||
|
|
||||||
|
// calculate the winners
|
||||||
|
for remainingQuantity > 0 {
|
||||||
|
|
||||||
|
// create the next winning bid
|
||||||
|
winner := Winners{
|
||||||
|
Buyer: bidders[i].Buyer,
|
||||||
|
Quantity: bidders[i].Quantity,
|
||||||
|
}
|
||||||
|
|
||||||
|
// add them to the list of winners and change the winning price
|
||||||
|
auction.Winners = append(auction.Winners, winner)
|
||||||
|
auction.Price = bidders[i].Price
|
||||||
|
|
||||||
|
// Calculate the quantity that goes to the winner
|
||||||
|
// if there is sufficient quantity to give them the full bid
|
||||||
|
if remainingQuantity > bidders[i].Quantity {
|
||||||
|
remainingQuantity = remainingQuantity - bidders[i].Quantity
|
||||||
|
|
||||||
|
// if there is not, give the remainder
|
||||||
|
} else {
|
||||||
|
auction.Winners[i].Quantity = remainingQuantity
|
||||||
|
remainingQuantity = 0
|
||||||
|
}
|
||||||
|
i++
|
||||||
|
if i == len(bidders) {
|
||||||
|
remainingQuantity = 0
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// check if there is a winning bid that has yet to be revealed
|
||||||
|
err = checkForHigherBid(ctx, auction.Price, auction.RevealedBids, auction.PrivateBids)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("Cannot end auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
auction.Status = string("ended")
|
||||||
|
|
||||||
|
endedAuctionJSON, _ := json.Marshal(auction)
|
||||||
|
|
||||||
|
err = ctx.GetStub().PutState(auctionID, endedAuctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to end auction: %v", err)
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,91 @@
|
||||||
|
/*
|
||||||
|
SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
package auction
|
||||||
|
|
||||||
|
import (
|
||||||
|
"encoding/json"
|
||||||
|
"fmt"
|
||||||
|
|
||||||
|
"github.com/hyperledger/fabric-chaincode-go/shim"
|
||||||
|
"github.com/hyperledger/fabric-contract-api-go/contractapi"
|
||||||
|
)
|
||||||
|
|
||||||
|
// QueryAuction allows all members of the channel to read a public auction
|
||||||
|
func (s *SmartContract) QueryAuction(ctx contractapi.TransactionContextInterface, auctionID string) (*Auction, error) {
|
||||||
|
|
||||||
|
auctionJSON, err := ctx.GetStub().GetState(auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("failed to get auction object %v: %v", auctionID, err)
|
||||||
|
}
|
||||||
|
if auctionJSON == nil {
|
||||||
|
return nil, fmt.Errorf("auction does not exist")
|
||||||
|
}
|
||||||
|
|
||||||
|
var auction *Auction
|
||||||
|
err = json.Unmarshal(auctionJSON, &auction)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
return auction, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// checkForHigherBid is an internal function that is used to determine if a winning bid has yet to be revealed
|
||||||
|
func checkForHigherBid(ctx contractapi.TransactionContextInterface, auctionPrice int, revealedBidders map[string]FullBid, bidders map[string]BidHash) error {
|
||||||
|
|
||||||
|
// Get MSP ID of peer org
|
||||||
|
peerMSPID, err := shim.GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed getting the peer's MSPID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
var error error
|
||||||
|
error = nil
|
||||||
|
|
||||||
|
for bidKey, privateBid := range bidders {
|
||||||
|
|
||||||
|
if _, bidInAuction := revealedBidders[bidKey]; bidInAuction {
|
||||||
|
|
||||||
|
//bid is already revealed, no action to take
|
||||||
|
|
||||||
|
} else {
|
||||||
|
|
||||||
|
collection := "_implicit_org_" + privateBid.Org
|
||||||
|
|
||||||
|
if privateBid.Org == peerMSPID {
|
||||||
|
|
||||||
|
bidJSON, err := ctx.GetStub().GetPrivateData(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get bid %v: %v", bidKey, err)
|
||||||
|
}
|
||||||
|
if bidJSON == nil {
|
||||||
|
return fmt.Errorf("bid %v does not exist", bidKey)
|
||||||
|
}
|
||||||
|
|
||||||
|
var bid *FullBid
|
||||||
|
err = json.Unmarshal(bidJSON, &bid)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
if bid.Price > auctionPrice {
|
||||||
|
error = fmt.Errorf("Cannot close auction, bidder has a higher price: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
} else {
|
||||||
|
|
||||||
|
hash, err := ctx.GetStub().GetPrivateDataHash(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to read bid hash from collection: %v", err)
|
||||||
|
}
|
||||||
|
if hash == nil {
|
||||||
|
return fmt.Errorf("bid hash does not exist: %s", bidKey)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return error
|
||||||
|
}
|
||||||
203
auction-dutch/chaincode-go-auditor/smart-contract/utils.go
Normal file
203
auction-dutch/chaincode-go-auditor/smart-contract/utils.go
Normal file
|
|
@ -0,0 +1,203 @@
|
||||||
|
/*
|
||||||
|
SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
package auction
|
||||||
|
|
||||||
|
import (
|
||||||
|
"encoding/base64"
|
||||||
|
"fmt"
|
||||||
|
|
||||||
|
"github.com/golang/protobuf/proto"
|
||||||
|
"github.com/hyperledger/fabric-chaincode-go/shim"
|
||||||
|
"github.com/hyperledger/fabric-contract-api-go/contractapi"
|
||||||
|
"github.com/hyperledger/fabric-protos-go/common"
|
||||||
|
"github.com/hyperledger/fabric-protos-go/msp"
|
||||||
|
)
|
||||||
|
|
||||||
|
func (s *SmartContract) GetSubmittingClientIdentity(ctx contractapi.TransactionContextInterface) (string, error) {
|
||||||
|
|
||||||
|
b64ID, err := ctx.GetClientIdentity().GetID()
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("Failed to read clientID: %v", err)
|
||||||
|
}
|
||||||
|
decodeID, err := base64.StdEncoding.DecodeString(b64ID)
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("failed to base64 decode clientID: %v", err)
|
||||||
|
}
|
||||||
|
return string(decodeID), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// getCollectionName is an internal helper function to get collection of submitting client identity.
|
||||||
|
func getCollectionName(ctx contractapi.TransactionContextInterface) (string, error) {
|
||||||
|
|
||||||
|
// Get the MSP ID of submitting client identity
|
||||||
|
clientMSPID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("failed to get verified MSPID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Create the collection name
|
||||||
|
orgCollection := "_implicit_org_" + clientMSPID
|
||||||
|
|
||||||
|
return orgCollection, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// verifyClientOrgMatchesPeerOrg is an internal function used to verify that client org id matches peer org id.
|
||||||
|
func verifyClientOrgMatchesPeerOrg(ctx contractapi.TransactionContextInterface) error {
|
||||||
|
|
||||||
|
clientMSPID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed getting the client's MSPID: %v", err)
|
||||||
|
}
|
||||||
|
peerMSPID, err := shim.GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed getting the peer's MSPID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if clientMSPID != peerMSPID {
|
||||||
|
return fmt.Errorf("client from org %v is not authorized to read or write private data from an org %v peer", clientMSPID, peerMSPID)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func contains(sli []string, str string) bool {
|
||||||
|
for _, a := range sli {
|
||||||
|
if a == str {
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
|
||||||
|
func setAssetStateBasedEndorsement(ctx contractapi.TransactionContextInterface, assetId string, mspids []string, auditor bool) error {
|
||||||
|
|
||||||
|
principals := make([]*msp.MSPPrincipal, len(mspids))
|
||||||
|
participantSigsPolicy := make([]*common.SignaturePolicy, len(mspids))
|
||||||
|
|
||||||
|
for i, id := range mspids {
|
||||||
|
principal, err := proto.Marshal(
|
||||||
|
&msp.MSPRole{
|
||||||
|
Role: msp.MSPRole_PEER,
|
||||||
|
MspIdentifier: id,
|
||||||
|
},
|
||||||
|
)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
principals[i] = &msp.MSPPrincipal{
|
||||||
|
PrincipalClassification: msp.MSPPrincipal_ROLE,
|
||||||
|
Principal: principal,
|
||||||
|
}
|
||||||
|
participantSigsPolicy[i] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_SignedBy{
|
||||||
|
SignedBy: int32(i),
|
||||||
|
},
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if auditor == false {
|
||||||
|
// create the defalt policy for an auction without an auditor
|
||||||
|
|
||||||
|
policy := &common.SignaturePolicyEnvelope{
|
||||||
|
Version: 0,
|
||||||
|
Rule: &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: int32(len(mspids)),
|
||||||
|
Rules: participantSigsPolicy,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
Identities: principals,
|
||||||
|
}
|
||||||
|
|
||||||
|
spBytes, err := proto.Marshal(policy)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
err = ctx.GetStub().SetStateValidationParameter(assetId, spBytes)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to set validation parameter on auction: %v", err)
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
|
||||||
|
// create the defalt policy for an auction with an auditor
|
||||||
|
|
||||||
|
// create the auditor identity and signature policy
|
||||||
|
auditorMSP, err := proto.Marshal(
|
||||||
|
&msp.MSPRole{
|
||||||
|
Role: msp.MSPRole_PEER,
|
||||||
|
MspIdentifier: "Org3MSP",
|
||||||
|
},
|
||||||
|
)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
principals = append(principals, &msp.MSPPrincipal{
|
||||||
|
PrincipalClassification: msp.MSPPrincipal_ROLE,
|
||||||
|
Principal: auditorMSP,
|
||||||
|
},
|
||||||
|
)
|
||||||
|
// Create the policies in case the auditor is needed. In this case, an
|
||||||
|
// auditor and 1 participant can update the auction.
|
||||||
|
auditorPolicies := make([]*common.SignaturePolicy, 2)
|
||||||
|
auditorPolicies[0] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_SignedBy{
|
||||||
|
SignedBy: int32(len(principals) - 1),
|
||||||
|
},
|
||||||
|
}
|
||||||
|
auditorPolicies[1] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: 1,
|
||||||
|
Rules: participantSigsPolicy,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
|
||||||
|
// The auditor policy below is equivilent to AND(auditor, OR(participants))
|
||||||
|
policies := make([]*common.SignaturePolicy, 2)
|
||||||
|
policies[0] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: 2,
|
||||||
|
Rules: auditorPolicies,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
// Participants can also update the auction without an auditor
|
||||||
|
policies[1] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: int32(len(mspids)),
|
||||||
|
Rules: participantSigsPolicy,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
// Either the auditor policy or the participant policy can update
|
||||||
|
// the auction
|
||||||
|
policy := &common.SignaturePolicyEnvelope{
|
||||||
|
Version: 0,
|
||||||
|
Rule: &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: 1,
|
||||||
|
Rules: policies,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
Identities: principals,
|
||||||
|
}
|
||||||
|
spBytes, err := proto.Marshal(policy)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
err = ctx.GetStub().SetStateValidationParameter(assetId, spBytes)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to set validation parameter on auction: %v", err)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
||||||
23
auction-dutch/chaincode-go-auditor/smartContract.go
Normal file
23
auction-dutch/chaincode-go-auditor/smartContract.go
Normal file
|
|
@ -0,0 +1,23 @@
|
||||||
|
/*
|
||||||
|
SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
package main
|
||||||
|
|
||||||
|
import (
|
||||||
|
"log"
|
||||||
|
|
||||||
|
"github.com/hyperledger/fabric-contract-api-go/contractapi"
|
||||||
|
auction "github.com/hyperledger/fabric-samples/auction/dutch-auction/chaincode-go-auditor/smart-contract"
|
||||||
|
)
|
||||||
|
|
||||||
|
func main() {
|
||||||
|
auctionSmartContract, err := contractapi.NewChaincode(&auction.SmartContract{})
|
||||||
|
if err != nil {
|
||||||
|
log.Panicf("Error creating auction chaincode: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if err := auctionSmartContract.Start(); err != nil {
|
||||||
|
log.Panicf("Error starting auction chaincode: %v", err)
|
||||||
|
}
|
||||||
|
}
|
||||||
13
auction-dutch/chaincode-go/go.mod
Normal file
13
auction-dutch/chaincode-go/go.mod
Normal file
|
|
@ -0,0 +1,13 @@
|
||||||
|
module github.com/hyperledger/fabric-samples/auction/dutch-auction/chaincode-go
|
||||||
|
|
||||||
|
go 1.14
|
||||||
|
|
||||||
|
require (
|
||||||
|
github.com/golang/protobuf v1.4.3
|
||||||
|
github.com/hyperledger/fabric-chaincode-go v0.0.0-20201119163726-f8ef75b17719
|
||||||
|
github.com/hyperledger/fabric-contract-api-go v1.1.1
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20210127161553-4f432a78f286
|
||||||
|
golang.org/x/net v0.0.0-20201021035429-f5854403a974 // indirect
|
||||||
|
golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4 // indirect
|
||||||
|
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
|
||||||
|
)
|
||||||
172
auction-dutch/chaincode-go/go.sum
Normal file
172
auction-dutch/chaincode-go/go.sum
Normal file
|
|
@ -0,0 +1,172 @@
|
||||||
|
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
|
||||||
|
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
|
||||||
|
github.com/DATA-DOG/go-txdb v0.1.3/go.mod h1:DhAhxMXZpUJVGnT+p9IbzJoRKvlArO2pkHjnGX7o0n0=
|
||||||
|
github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
|
||||||
|
github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
|
||||||
|
github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
|
||||||
|
github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
|
||||||
|
github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
|
||||||
|
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
|
||||||
|
github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
|
||||||
|
github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
|
||||||
|
github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
|
||||||
|
github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
|
||||||
|
github.com/cucumber/godog v0.8.0/go.mod h1:Cp3tEV1LRAyH/RuCThcxHS/+9ORZ+FMzPva2AZ5Ki+A=
|
||||||
|
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||||
|
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||||
|
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||||
|
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
|
||||||
|
github.com/go-openapi/jsonpointer v0.19.2/go.mod h1:3akKfEdA7DF1sugOqz1dVQHBcuDBPKZGEoHC/NkiQRg=
|
||||||
|
github.com/go-openapi/jsonpointer v0.19.3 h1:gihV7YNZK1iK6Tgwwsxo2rJbD1GTbdm72325Bq8FI3w=
|
||||||
|
github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
|
||||||
|
github.com/go-openapi/jsonreference v0.19.2 h1:o20suLFB4Ri0tuzpWtyHlh7E7HnkqTNLq6aR6WVNS1w=
|
||||||
|
github.com/go-openapi/jsonreference v0.19.2/go.mod h1:jMjeRr2HHw6nAVajTXJ4eiUwohSTlpa0o73RUL1owJc=
|
||||||
|
github.com/go-openapi/spec v0.19.4 h1:ixzUSnHTd6hCemgtAJgluaTSGYpLNpJY4mA2DIkdOAo=
|
||||||
|
github.com/go-openapi/spec v0.19.4/go.mod h1:FpwSN1ksY1eteniUU7X0N/BgJ7a4WvBFVA8Lj9mJglo=
|
||||||
|
github.com/go-openapi/swag v0.19.2/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
|
||||||
|
github.com/go-openapi/swag v0.19.5 h1:lTz6Ys4CmqqCQmZPBlbQENR1/GucA2bzYTE12Pw4tFY=
|
||||||
|
github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
|
||||||
|
github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
|
||||||
|
github.com/gobuffalo/envy v1.7.0 h1:GlXgaiBkmrYMHco6t4j7SacKO4XUjvh5pwXh0f4uxXU=
|
||||||
|
github.com/gobuffalo/envy v1.7.0/go.mod h1:n7DRkBerg/aorDM8kbduw5dN3oXGswK5liaSCx4T5NI=
|
||||||
|
github.com/gobuffalo/logger v1.0.0/go.mod h1:2zbswyIUa45I+c+FLXuWl9zSWEiVuthsk8ze5s8JvPs=
|
||||||
|
github.com/gobuffalo/packd v0.3.0 h1:eMwymTkA1uXsqxS0Tpoop3Lc0u3kTfiMBE6nKtQU4g4=
|
||||||
|
github.com/gobuffalo/packd v0.3.0/go.mod h1:zC7QkmNkYVGKPw4tHpBQ+ml7W/3tIebgeo1b36chA3Q=
|
||||||
|
github.com/gobuffalo/packr v1.30.1 h1:hu1fuVR3fXEZR7rXNW3h8rqSML8EVAf6KNm0NKO/wKg=
|
||||||
|
github.com/gobuffalo/packr v1.30.1/go.mod h1:ljMyFO2EcrnzsHsN99cvbq055Y9OhRrIaviy289eRuk=
|
||||||
|
github.com/gobuffalo/packr/v2 v2.5.1/go.mod h1:8f9c96ITobJlPzI44jj+4tHnEKNt0xXWSVlXRN9X1Iw=
|
||||||
|
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
|
||||||
|
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
|
||||||
|
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
|
||||||
|
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||||
|
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||||
|
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
|
||||||
|
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
|
||||||
|
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
|
||||||
|
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
|
||||||
|
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
|
||||||
|
github.com/golang/protobuf v1.4.3 h1:JjCZWpVbqXDqFVmTfYWEVTMIYrL/NPdPSCHPJ0T/raM=
|
||||||
|
github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
|
||||||
|
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
|
||||||
|
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
|
||||||
|
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
|
||||||
|
github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
|
||||||
|
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||||
|
github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
|
||||||
|
github.com/hyperledger/fabric-chaincode-go v0.0.0-20200424173110-d7076418f212/go.mod h1:N7H3sA7Tx4k/YzFq7U0EPdqJtqvM4Kild0JoCc7C0Dc=
|
||||||
|
github.com/hyperledger/fabric-chaincode-go v0.0.0-20201119163726-f8ef75b17719 h1:FQ9AMLVSFt5QW2YBLraXW5V4Au6aFFpSl4xKFARM58Y=
|
||||||
|
github.com/hyperledger/fabric-chaincode-go v0.0.0-20201119163726-f8ef75b17719/go.mod h1:N7H3sA7Tx4k/YzFq7U0EPdqJtqvM4Kild0JoCc7C0Dc=
|
||||||
|
github.com/hyperledger/fabric-contract-api-go v1.1.1 h1:gDhOC18gjgElNZ85kFWsbCQq95hyUP/21n++m0Sv6B0=
|
||||||
|
github.com/hyperledger/fabric-contract-api-go v1.1.1/go.mod h1:+39cWxbh5py3NtXpRA63rAH7NzXyED+QJx1EZr0tJPo=
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20190919234611-2a87503ac7c9/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20200424173316-dd554ba3746e/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20210127161553-4f432a78f286 h1:cFLrvWUprlCbVixFkaeONNlUtbsjv3c20ujb4RJFBl8=
|
||||||
|
github.com/hyperledger/fabric-protos-go v0.0.0-20210127161553-4f432a78f286/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
|
||||||
|
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
|
||||||
|
github.com/joho/godotenv v1.3.0 h1:Zjp+RcGpHhGlrMbJzXTrZZPrWj+1vfm90La1wgB6Bhc=
|
||||||
|
github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqxOKXbg=
|
||||||
|
github.com/karrick/godirwalk v1.10.12/go.mod h1:RoGL9dQei4vP9ilrpETWE8CLOZ1kiN0LhBygSwrAsHA=
|
||||||
|
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
|
||||||
|
github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
|
||||||
|
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
|
||||||
|
github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs=
|
||||||
|
github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
|
||||||
|
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
||||||
|
github.com/kr/pty v1.1.5/go.mod h1:9r2w37qlBe7rQ6e1fg1S/9xpWHSnaqNdHD3WcMdbPDA=
|
||||||
|
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
|
||||||
|
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
|
||||||
|
github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
|
||||||
|
github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
|
||||||
|
github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e h1:hB2xlXdHp/pmPZq0y3QnmWAArdw9PqbmotexnWx/FU8=
|
||||||
|
github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
|
||||||
|
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
|
||||||
|
github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
|
||||||
|
github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
|
||||||
|
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||||
|
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||||
|
github.com/rogpeppe/go-internal v1.1.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
|
||||||
|
github.com/rogpeppe/go-internal v1.3.0 h1:RR9dF3JtopPvtkroDZuVD7qquD0bnHlKSqaQhgwt8yk=
|
||||||
|
github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
|
||||||
|
github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
|
||||||
|
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
|
||||||
|
github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
|
||||||
|
github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
|
||||||
|
github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU=
|
||||||
|
github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
|
||||||
|
github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
|
||||||
|
github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
|
||||||
|
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||||
|
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||||
|
github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
|
||||||
|
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
|
||||||
|
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
|
||||||
|
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
|
||||||
|
github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
|
||||||
|
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
|
||||||
|
github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
|
||||||
|
github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f h1:J9EGpcZtP0E/raorCMxlFGSTBrsSlaDGf3jU/qvAE2c=
|
||||||
|
github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f/go.mod h1:N2zxlSyiKSe5eX1tZViRH5QA0qijqEDrYZiPEAiq3wU=
|
||||||
|
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 h1:EzJWgHovont7NscjpAxXsDA8S8BMYve8Y5+7cuRE7R0=
|
||||||
|
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
|
||||||
|
github.com/xeipuuv/gojsonschema v1.2.0 h1:LhYJRs+L4fBtjZUfuSZIKGeVu0QRy8e5Xi7D17UxZ74=
|
||||||
|
github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
|
||||||
|
github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
|
||||||
|
golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
|
||||||
|
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||||
|
golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||||
|
golang.org/x/crypto v0.0.0-20190621222207-cc06ce4a13d4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||||
|
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
|
||||||
|
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
|
||||||
|
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||||
|
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||||
|
golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
|
||||||
|
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||||
|
golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||||
|
golang.org/x/net v0.0.0-20201021035429-f5854403a974 h1:IX6qOQeG5uLjB/hjjwjedwfjND0hgjPMMyO1RoIXQNI=
|
||||||
|
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
|
||||||
|
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
|
||||||
|
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||||
|
golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||||
|
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||||
|
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20190515120540-06a5c4944438/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20190616124812-15dcb6c0061f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20190710143415-6ec70d6a5542/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4 h1:myAQVi0cGEoqQVR5POX+8RR2mrocKqNN1hmeMqhX27k=
|
||||||
|
golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||||
|
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
|
||||||
|
golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
|
||||||
|
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||||
|
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||||
|
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
|
||||||
|
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
|
||||||
|
golang.org/x/tools v0.0.0-20190614205625-5aca471b1d59/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
|
||||||
|
golang.org/x/tools v0.0.0-20190624180213-70d37148ca0c/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
|
||||||
|
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||||
|
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
|
||||||
|
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||||
|
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
|
||||||
|
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
|
||||||
|
google.golang.org/genproto v0.0.0-20180831171423-11092d34479b h1:lohp5blsw53GBXtLyLNaTXPXS9pJ1tiTw61ZHUoE9Qw=
|
||||||
|
google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
|
||||||
|
google.golang.org/grpc v1.23.0 h1:AzbTB6ux+okLTzP8Ru1Xs41C303zdcfEht7MQnYJt5A=
|
||||||
|
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
|
||||||
|
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
|
||||||
|
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
|
||||||
|
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
|
||||||
|
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
|
||||||
|
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
|
||||||
|
google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
|
||||||
|
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
|
||||||
|
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||||
|
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||||
|
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
|
||||||
|
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||||
|
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
|
||||||
|
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||||
|
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
|
||||||
|
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||||
|
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
|
||||||
517
auction-dutch/chaincode-go/smart-contract/auction.go
Normal file
517
auction-dutch/chaincode-go/smart-contract/auction.go
Normal file
|
|
@ -0,0 +1,517 @@
|
||||||
|
/*
|
||||||
|
SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
package auction
|
||||||
|
|
||||||
|
import (
|
||||||
|
"bytes"
|
||||||
|
"crypto/sha256"
|
||||||
|
"encoding/json"
|
||||||
|
"fmt"
|
||||||
|
"sort"
|
||||||
|
|
||||||
|
"github.com/hyperledger/fabric-contract-api-go/contractapi"
|
||||||
|
)
|
||||||
|
|
||||||
|
type SmartContract struct {
|
||||||
|
contractapi.Contract
|
||||||
|
}
|
||||||
|
|
||||||
|
// Auction data
|
||||||
|
type Auction struct {
|
||||||
|
Type string `json:"objectType"`
|
||||||
|
ItemSold string `json:"item"`
|
||||||
|
Seller string `json:"seller"`
|
||||||
|
Quantity int `json:"quantity"`
|
||||||
|
Orgs []string `json:"organizations"`
|
||||||
|
PrivateBids map[string]BidHash `json:"privateBids"`
|
||||||
|
RevealedBids map[string]FullBid `json:"revealedBids"`
|
||||||
|
Winners []Winners `json:"winners"`
|
||||||
|
Price int `json:"price"`
|
||||||
|
Status string `json:"status"`
|
||||||
|
Auditor bool `json:"auditor"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// FullBid is the structure of a revealed bid
|
||||||
|
type FullBid struct {
|
||||||
|
Type string `json:"objectType"`
|
||||||
|
Quantity int `json:"quantity"`
|
||||||
|
Price int `json:"price"`
|
||||||
|
Org string `json:"org"`
|
||||||
|
Buyer string `json:"buyer"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// BidHash is the structure of a private bid
|
||||||
|
type BidHash struct {
|
||||||
|
Org string `json:"org"`
|
||||||
|
Hash string `json:"hash"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// Winners stores the winners of the auction
|
||||||
|
type Winners struct {
|
||||||
|
Buyer string `json:"buyer"`
|
||||||
|
Quantity int `json:"quantity"`
|
||||||
|
}
|
||||||
|
|
||||||
|
const bidKeyType = "bid"
|
||||||
|
|
||||||
|
// CreateAuction creates on auction on the public channel. The identity that
|
||||||
|
// submits the transacion becomes the seller of the auction
|
||||||
|
func (s *SmartContract) CreateAuction(ctx contractapi.TransactionContextInterface, auctionID string, itemsold string, quantity int, withAuditor string) error {
|
||||||
|
|
||||||
|
// get ID of submitting client
|
||||||
|
clientID, err := s.GetSubmittingClientIdentity(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get org of submitting client
|
||||||
|
clientOrgID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
auditor := false
|
||||||
|
|
||||||
|
if withAuditor == "withAuditor" {
|
||||||
|
auditor = true
|
||||||
|
}
|
||||||
|
|
||||||
|
// Create auction
|
||||||
|
bidders := make(map[string]BidHash)
|
||||||
|
revealedBids := make(map[string]FullBid)
|
||||||
|
|
||||||
|
auction := Auction{
|
||||||
|
Type: "auction",
|
||||||
|
ItemSold: itemsold,
|
||||||
|
Quantity: quantity,
|
||||||
|
Price: 0,
|
||||||
|
Seller: clientID,
|
||||||
|
Orgs: []string{clientOrgID},
|
||||||
|
PrivateBids: bidders,
|
||||||
|
RevealedBids: revealedBids,
|
||||||
|
Winners: []Winners{},
|
||||||
|
Status: "open",
|
||||||
|
Auditor: auditor,
|
||||||
|
}
|
||||||
|
|
||||||
|
auctionJSON, err := json.Marshal(auction)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// put auction into state
|
||||||
|
err = ctx.GetStub().PutState(auctionID, auctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to put auction in public data: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// set the seller of the auction as an endorser
|
||||||
|
err = setAssetStateBasedEndorsement(ctx, auctionID, []string{clientOrgID}, auditor)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed setting state based endorsement for new organization: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// Bid is used to add a users bid to the auction. The bid is stored in the private
|
||||||
|
// data collection on the peer of the bidder's organization. The function returns
|
||||||
|
// the transaction ID so that users can identify and query their bid
|
||||||
|
func (s *SmartContract) Bid(ctx contractapi.TransactionContextInterface, auctionID string) (string, error) {
|
||||||
|
|
||||||
|
// get bid from transient map
|
||||||
|
transientMap, err := ctx.GetStub().GetTransient()
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("error getting transient: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
bidJSON, ok := transientMap["bid"]
|
||||||
|
if !ok {
|
||||||
|
return "", fmt.Errorf("bid key not found in the transient map")
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the implicit collection name using the bidder's organization ID
|
||||||
|
collection, err := getCollectionName(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("failed to get implicit collection name: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// the bidder has to target their peer to store the bid
|
||||||
|
err = verifyClientOrgMatchesPeerOrg(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("Cannot store bid on this peer, not a member of this org: Error %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// the transaction ID is used as a unique index for the bid
|
||||||
|
txID := ctx.GetStub().GetTxID()
|
||||||
|
|
||||||
|
// create a composite key using the transaction ID
|
||||||
|
bidKey, err := ctx.GetStub().CreateCompositeKey(bidKeyType, []string{auctionID, txID})
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("failed to create composite key: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// put the bid into the organization's implicit data collection
|
||||||
|
err = ctx.GetStub().PutPrivateData(collection, bidKey, bidJSON)
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("failed to input price into collection: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// return the trannsaction ID so that the uset can identify their bid
|
||||||
|
return txID, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// SubmitBid is used by the bidder to add the hash of that bid stored in private data to the
|
||||||
|
// auction. Note that this function alters the auction in private state, and needs
|
||||||
|
// to meet the auction endorsement policy. Transaction ID is used identify the bid
|
||||||
|
func (s *SmartContract) SubmitBid(ctx contractapi.TransactionContextInterface, auctionID string, txID string) error {
|
||||||
|
|
||||||
|
// get the MSP ID of the bidder's org
|
||||||
|
clientOrgID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client MSP ID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the auction from public state
|
||||||
|
auction, err := s.QueryAuction(ctx, auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get auction from public state %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// the auction needs to be open for users to add their bid
|
||||||
|
status := auction.Status
|
||||||
|
if status != "open" {
|
||||||
|
return fmt.Errorf("cannot join closed or ended auction")
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the inplicit collection name of bidder's org
|
||||||
|
collection, err := getCollectionName(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get implicit collection name: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// use the transaction ID passed as a parameter to create composite bid key
|
||||||
|
bidKey, err := ctx.GetStub().CreateCompositeKey(bidKeyType, []string{auctionID, txID})
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to create composite key: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the hash of the bid if found in private collection
|
||||||
|
bidHash, err := ctx.GetStub().GetPrivateDataHash(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to read bid bash from collection: %v", err)
|
||||||
|
}
|
||||||
|
if bidHash == nil {
|
||||||
|
return fmt.Errorf("bid hash does not exist: %s", bidKey)
|
||||||
|
}
|
||||||
|
|
||||||
|
// store the hash along with the bidder's organization
|
||||||
|
newHash := BidHash{
|
||||||
|
Org: clientOrgID,
|
||||||
|
Hash: fmt.Sprintf("%x", bidHash),
|
||||||
|
}
|
||||||
|
|
||||||
|
bidders := make(map[string]BidHash)
|
||||||
|
bidders = auction.PrivateBids
|
||||||
|
bidders[bidKey] = newHash
|
||||||
|
auction.PrivateBids = bidders
|
||||||
|
|
||||||
|
// Add the bidding organization to the list of participating organization's if it is not already
|
||||||
|
orgs := auction.Orgs
|
||||||
|
if !(contains(orgs, clientOrgID)) {
|
||||||
|
newOrgs := append(orgs, clientOrgID)
|
||||||
|
auction.Orgs = newOrgs
|
||||||
|
|
||||||
|
err = setAssetStateBasedEndorsement(ctx, auctionID, newOrgs, auction.Auditor)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed setting state based endorsement for new organization: %v", err)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
newAuctionJSON, _ := json.Marshal(auction)
|
||||||
|
|
||||||
|
err = ctx.GetStub().PutState(auctionID, newAuctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to update auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// RevealBid is used by a bidder to reveal their bid after the auction is closed
|
||||||
|
func (s *SmartContract) RevealBid(ctx contractapi.TransactionContextInterface, auctionID string, txID string) error {
|
||||||
|
|
||||||
|
// get bid from transient map
|
||||||
|
transientMap, err := ctx.GetStub().GetTransient()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("error getting transient: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
transientBidJSON, ok := transientMap["bid"]
|
||||||
|
if !ok {
|
||||||
|
return fmt.Errorf("bid key not found in the transient map")
|
||||||
|
}
|
||||||
|
|
||||||
|
// get implicit collection name of organization ID
|
||||||
|
collection, err := getCollectionName(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get implicit collection name: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// use transaction ID to create composit bid key
|
||||||
|
bidKey, err := ctx.GetStub().CreateCompositeKey(bidKeyType, []string{auctionID, txID})
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to create composite key: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get bid hash of bid if private bid on the public ledger
|
||||||
|
bidHash, err := ctx.GetStub().GetPrivateDataHash(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to read bid bash from collection: %v", err)
|
||||||
|
}
|
||||||
|
if bidHash == nil {
|
||||||
|
return fmt.Errorf("bid hash does not exist: %s", bidKey)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get auction from public state
|
||||||
|
auction, err := s.QueryAuction(ctx, auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get auction from public state %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Complete a series of three checks before we add the bid to the auction
|
||||||
|
|
||||||
|
// check 1: check that the auction is closed. We cannot reveal an
|
||||||
|
// bid to an open auction
|
||||||
|
status := auction.Status
|
||||||
|
if status != "closed" {
|
||||||
|
return fmt.Errorf("cannot reveal bid for open or ended auction")
|
||||||
|
}
|
||||||
|
|
||||||
|
// check 2: check that hash of revealed bid matches hash of private bid
|
||||||
|
// on the public ledger. This checks that the bidder is telling the truth
|
||||||
|
// about the value of their bid
|
||||||
|
|
||||||
|
hash := sha256.New()
|
||||||
|
hash.Write(transientBidJSON)
|
||||||
|
calculatedBidJSONHash := hash.Sum(nil)
|
||||||
|
|
||||||
|
// verify that the hash of the passed immutable properties matches the on-chain hash
|
||||||
|
if !bytes.Equal(calculatedBidJSONHash, bidHash) {
|
||||||
|
return fmt.Errorf("hash %x for bid JSON %s does not match hash in auction: %x",
|
||||||
|
calculatedBidJSONHash,
|
||||||
|
transientBidJSON,
|
||||||
|
bidHash,
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
// check 3; check hash of relealed bid matches hash of private bid that was
|
||||||
|
// added earlier. This ensures that the bid has not changed since it
|
||||||
|
// was added to the auction
|
||||||
|
|
||||||
|
bidders := auction.PrivateBids
|
||||||
|
privateBidHashString := bidders[bidKey].Hash
|
||||||
|
|
||||||
|
onChainBidHashString := fmt.Sprintf("%x", bidHash)
|
||||||
|
if privateBidHashString != onChainBidHashString {
|
||||||
|
return fmt.Errorf("hash %s for bid JSON %s does not match hash in auction: %s, bidder must have changed bid",
|
||||||
|
privateBidHashString,
|
||||||
|
transientBidJSON,
|
||||||
|
onChainBidHashString,
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
// we can add the bid to the auction if all checks have passed
|
||||||
|
type transientBidInput struct {
|
||||||
|
Quantity int `json:"quantity"`
|
||||||
|
Price int `json:"price"`
|
||||||
|
Org string `json:"org"`
|
||||||
|
Buyer string `json:"buyer"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// unmarshal bid imput
|
||||||
|
var bidInput transientBidInput
|
||||||
|
err = json.Unmarshal(transientBidJSON, &bidInput)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to unmarshal JSON: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// get ID of submitting client
|
||||||
|
clientID, err := s.GetSubmittingClientIdentity(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// marshal transient parameters and ID and MSPID into bid object
|
||||||
|
newBid := FullBid{
|
||||||
|
Type: bidKeyType,
|
||||||
|
Quantity: bidInput.Quantity,
|
||||||
|
Price: bidInput.Price,
|
||||||
|
Org: bidInput.Org,
|
||||||
|
Buyer: bidInput.Buyer,
|
||||||
|
}
|
||||||
|
|
||||||
|
// check 4: make sure that the transaction is being submitted is the bidder
|
||||||
|
if bidInput.Buyer != clientID {
|
||||||
|
return fmt.Errorf("Permission denied, client id %v is not the owner of the bid", clientID)
|
||||||
|
}
|
||||||
|
|
||||||
|
revealedBids := make(map[string]FullBid)
|
||||||
|
revealedBids = auction.RevealedBids
|
||||||
|
revealedBids[bidKey] = newBid
|
||||||
|
auction.RevealedBids = revealedBids
|
||||||
|
|
||||||
|
auctionJSON, _ := json.Marshal(auction)
|
||||||
|
|
||||||
|
// put auction with bid added back into state
|
||||||
|
err = ctx.GetStub().PutState(auctionID, auctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to update auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// CloseAuction can be used by the seller to close the auction. This prevents
|
||||||
|
// bids from being added to the auction, and allows users to reveal their bid
|
||||||
|
func (s *SmartContract) CloseAuction(ctx contractapi.TransactionContextInterface, auctionID string) error {
|
||||||
|
|
||||||
|
// get auction from public state
|
||||||
|
auction, err := s.QueryAuction(ctx, auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get auction from public state %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// the auction can only be closed by the seller
|
||||||
|
|
||||||
|
// get ID of submitting client
|
||||||
|
clientID, err := s.GetSubmittingClientIdentity(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
seller := auction.Seller
|
||||||
|
if seller != clientID {
|
||||||
|
return fmt.Errorf("auction can only be closed by seller: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
status := auction.Status
|
||||||
|
if status != "open" {
|
||||||
|
return fmt.Errorf("cannot close auction that is not open")
|
||||||
|
}
|
||||||
|
|
||||||
|
auction.Status = string("closed")
|
||||||
|
|
||||||
|
closedAuctionJSON, _ := json.Marshal(auction)
|
||||||
|
|
||||||
|
err = ctx.GetStub().PutState(auctionID, closedAuctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to close auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// EndAuction both changes the auction status to closed and calculates the winners
|
||||||
|
// of the auction
|
||||||
|
func (s *SmartContract) EndAuction(ctx contractapi.TransactionContextInterface, auctionID string) error {
|
||||||
|
|
||||||
|
// get auction from public state
|
||||||
|
auction, err := s.QueryAuction(ctx, auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get auction from public state %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check that the auction is being ended by the seller
|
||||||
|
|
||||||
|
// get ID of submitting client
|
||||||
|
clientID, err := s.GetSubmittingClientIdentity(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
seller := auction.Seller
|
||||||
|
if seller != clientID {
|
||||||
|
return fmt.Errorf("auction can only be ended by seller: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
status := auction.Status
|
||||||
|
if status != "closed" {
|
||||||
|
return fmt.Errorf("Can only end a closed auction")
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the list of revealed bids
|
||||||
|
|
||||||
|
revealedBidMap := auction.RevealedBids
|
||||||
|
if len(auction.RevealedBids) == 0 {
|
||||||
|
return fmt.Errorf("No bids have been revealed, cannot end auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// sort the map of revealed bids to make it easier to calculate winners
|
||||||
|
// if bids are tied, fill smaller bids first
|
||||||
|
var bidders []FullBid
|
||||||
|
|
||||||
|
for _, bid := range revealedBidMap {
|
||||||
|
bidders = append(bidders, bid)
|
||||||
|
}
|
||||||
|
|
||||||
|
sort.Slice(bidders, func(p, q int) bool {
|
||||||
|
if bidders[p].Price > bidders[q].Price {
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
if bidders[p].Price < bidders[q].Price {
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
return bidders[p].Quantity < bidders[q].Quantity
|
||||||
|
})
|
||||||
|
|
||||||
|
i := 0
|
||||||
|
remainingQuantity := auction.Quantity
|
||||||
|
|
||||||
|
// calculate the winners
|
||||||
|
for remainingQuantity > 0 {
|
||||||
|
|
||||||
|
// create the next winning bid
|
||||||
|
winner := Winners{
|
||||||
|
Buyer: bidders[i].Buyer,
|
||||||
|
Quantity: bidders[i].Quantity,
|
||||||
|
}
|
||||||
|
|
||||||
|
// add them to the list of winners and change the winning price
|
||||||
|
auction.Winners = append(auction.Winners, winner)
|
||||||
|
auction.Price = bidders[i].Price
|
||||||
|
|
||||||
|
// Calculate the quantity that goes to the winner
|
||||||
|
// if there is sufficient quantity to give them the full bid
|
||||||
|
if remainingQuantity > bidders[i].Quantity {
|
||||||
|
remainingQuantity = remainingQuantity - bidders[i].Quantity
|
||||||
|
|
||||||
|
// if there is not, give the remainder
|
||||||
|
} else {
|
||||||
|
auction.Winners[i].Quantity = remainingQuantity
|
||||||
|
remainingQuantity = 0
|
||||||
|
}
|
||||||
|
i++
|
||||||
|
if i == len(bidders) {
|
||||||
|
remainingQuantity = 0
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// check if there is a winning bid that has yet to be revealed
|
||||||
|
err = checkForHigherBid(ctx, auction.Price, auction.RevealedBids, auction.PrivateBids)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("Cannot end auction: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
auction.Status = string("ended")
|
||||||
|
|
||||||
|
endedAuctionJSON, _ := json.Marshal(auction)
|
||||||
|
|
||||||
|
err = ctx.GetStub().PutState(auctionID, endedAuctionJSON)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to end auction: %v", err)
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
||||||
136
auction-dutch/chaincode-go/smart-contract/auctionQueries.go
Normal file
136
auction-dutch/chaincode-go/smart-contract/auctionQueries.go
Normal file
|
|
@ -0,0 +1,136 @@
|
||||||
|
/*
|
||||||
|
SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
package auction
|
||||||
|
|
||||||
|
import (
|
||||||
|
"encoding/json"
|
||||||
|
"fmt"
|
||||||
|
|
||||||
|
"github.com/hyperledger/fabric-chaincode-go/shim"
|
||||||
|
"github.com/hyperledger/fabric-contract-api-go/contractapi"
|
||||||
|
)
|
||||||
|
|
||||||
|
// QueryAuction allows all members of the channel to read a public auction
|
||||||
|
func (s *SmartContract) QueryAuction(ctx contractapi.TransactionContextInterface, auctionID string) (*Auction, error) {
|
||||||
|
|
||||||
|
auctionJSON, err := ctx.GetStub().GetState(auctionID)
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("failed to get auction object %v: %v", auctionID, err)
|
||||||
|
}
|
||||||
|
if auctionJSON == nil {
|
||||||
|
return nil, fmt.Errorf("auction does not exist")
|
||||||
|
}
|
||||||
|
|
||||||
|
var auction *Auction
|
||||||
|
err = json.Unmarshal(auctionJSON, &auction)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
return auction, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// QueryBid allows the submitter of the bid to read their bid from public state
|
||||||
|
func (s *SmartContract) QueryBid(ctx contractapi.TransactionContextInterface, auctionID string, txID string) (*FullBid, error) {
|
||||||
|
|
||||||
|
err := verifyClientOrgMatchesPeerOrg(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("failed to get implicit collection name: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
clientID, err := s.GetSubmittingClientIdentity(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("failed to get client identity %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
collection, err := getCollectionName(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("failed to get implicit collection name: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
bidKey, err := ctx.GetStub().CreateCompositeKey(bidKeyType, []string{auctionID, txID})
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("failed to create composite key: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
bidJSON, err := ctx.GetStub().GetPrivateData(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("failed to get bid %v: %v", bidKey, err)
|
||||||
|
}
|
||||||
|
if bidJSON == nil {
|
||||||
|
return nil, fmt.Errorf("bid %v does not exist", bidKey)
|
||||||
|
}
|
||||||
|
|
||||||
|
var bid *FullBid
|
||||||
|
err = json.Unmarshal(bidJSON, &bid)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// check that the client querying the bid is the bid owner
|
||||||
|
if bid.Buyer != clientID {
|
||||||
|
return nil, fmt.Errorf("Permission denied, client id %v is not the owner of the bid", clientID)
|
||||||
|
}
|
||||||
|
|
||||||
|
return bid, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// checkForHigherBid is an internal function that is used to determine if a winning bid has yet to be revealed
|
||||||
|
func checkForHigherBid(ctx contractapi.TransactionContextInterface, auctionPrice int, revealedBidders map[string]FullBid, bidders map[string]BidHash) error {
|
||||||
|
|
||||||
|
// Get MSP ID of peer org
|
||||||
|
peerMSPID, err := shim.GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed getting the peer's MSPID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
var error error
|
||||||
|
error = nil
|
||||||
|
|
||||||
|
for bidKey, privateBid := range bidders {
|
||||||
|
|
||||||
|
if _, bidInAuction := revealedBidders[bidKey]; bidInAuction {
|
||||||
|
|
||||||
|
//bid is already revealed, no action to take
|
||||||
|
|
||||||
|
} else {
|
||||||
|
|
||||||
|
collection := "_implicit_org_" + privateBid.Org
|
||||||
|
|
||||||
|
if privateBid.Org == peerMSPID {
|
||||||
|
|
||||||
|
bidJSON, err := ctx.GetStub().GetPrivateData(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to get bid %v: %v", bidKey, err)
|
||||||
|
}
|
||||||
|
if bidJSON == nil {
|
||||||
|
return fmt.Errorf("bid %v does not exist", bidKey)
|
||||||
|
}
|
||||||
|
|
||||||
|
var bid *FullBid
|
||||||
|
err = json.Unmarshal(bidJSON, &bid)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
if bid.Price > auctionPrice {
|
||||||
|
error = fmt.Errorf("Cannot close auction, bidder has a higher price: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
} else {
|
||||||
|
|
||||||
|
hash, err := ctx.GetStub().GetPrivateDataHash(collection, bidKey)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to read bid hash from collection: %v", err)
|
||||||
|
}
|
||||||
|
if hash == nil {
|
||||||
|
return fmt.Errorf("bid hash does not exist: %s", bidKey)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return error
|
||||||
|
}
|
||||||
205
auction-dutch/chaincode-go/smart-contract/utils.go
Normal file
205
auction-dutch/chaincode-go/smart-contract/utils.go
Normal file
|
|
@ -0,0 +1,205 @@
|
||||||
|
/*
|
||||||
|
SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
package auction
|
||||||
|
|
||||||
|
import (
|
||||||
|
"encoding/base64"
|
||||||
|
"fmt"
|
||||||
|
|
||||||
|
"github.com/golang/protobuf/proto"
|
||||||
|
"github.com/hyperledger/fabric-chaincode-go/shim"
|
||||||
|
"github.com/hyperledger/fabric-contract-api-go/contractapi"
|
||||||
|
"github.com/hyperledger/fabric-protos-go/common"
|
||||||
|
"github.com/hyperledger/fabric-protos-go/msp"
|
||||||
|
)
|
||||||
|
|
||||||
|
func (s *SmartContract) GetSubmittingClientIdentity(ctx contractapi.TransactionContextInterface) (string, error) {
|
||||||
|
|
||||||
|
b64ID, err := ctx.GetClientIdentity().GetID()
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("Failed to read clientID: %v", err)
|
||||||
|
}
|
||||||
|
decodeID, err := base64.StdEncoding.DecodeString(b64ID)
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("failed to base64 decode clientID: %v", err)
|
||||||
|
}
|
||||||
|
return string(decodeID), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// getCollectionName is an internal helper function to get collection of submitting client identity.
|
||||||
|
func getCollectionName(ctx contractapi.TransactionContextInterface) (string, error) {
|
||||||
|
|
||||||
|
// Get the MSP ID of submitting client identity
|
||||||
|
clientMSPID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return "", fmt.Errorf("failed to get verified MSPID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Create the collection name
|
||||||
|
orgCollection := "_implicit_org_" + clientMSPID
|
||||||
|
|
||||||
|
return orgCollection, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// verifyClientOrgMatchesPeerOrg is an internal function used to verify that client org id matches peer org id.
|
||||||
|
func verifyClientOrgMatchesPeerOrg(ctx contractapi.TransactionContextInterface) error {
|
||||||
|
|
||||||
|
clientMSPID, err := ctx.GetClientIdentity().GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed getting the client's MSPID: %v", err)
|
||||||
|
}
|
||||||
|
peerMSPID, err := shim.GetMSPID()
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed getting the peer's MSPID: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if clientMSPID != peerMSPID {
|
||||||
|
return fmt.Errorf("client from org %v is not authorized to read or write private data from an org %v peer", clientMSPID, peerMSPID)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func contains(sli []string, str string) bool {
|
||||||
|
for _, a := range sli {
|
||||||
|
if a == str {
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
|
||||||
|
func setAssetStateBasedEndorsement(ctx contractapi.TransactionContextInterface, assetId string, mspids []string, auditor bool) error {
|
||||||
|
|
||||||
|
principals := make([]*msp.MSPPrincipal, len(mspids))
|
||||||
|
participantSigsPolicy := make([]*common.SignaturePolicy, len(mspids))
|
||||||
|
|
||||||
|
for i, id := range mspids {
|
||||||
|
principal, err := proto.Marshal(
|
||||||
|
&msp.MSPRole{
|
||||||
|
Role: msp.MSPRole_PEER,
|
||||||
|
MspIdentifier: id,
|
||||||
|
},
|
||||||
|
)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
principals[i] = &msp.MSPPrincipal{
|
||||||
|
PrincipalClassification: msp.MSPPrincipal_ROLE,
|
||||||
|
Principal: principal,
|
||||||
|
}
|
||||||
|
participantSigsPolicy[i] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_SignedBy{
|
||||||
|
SignedBy: int32(i),
|
||||||
|
},
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if auditor == false {
|
||||||
|
// create the defalt policy for an auction without an auditor
|
||||||
|
|
||||||
|
policy := &common.SignaturePolicyEnvelope{
|
||||||
|
Version: 0,
|
||||||
|
Rule: &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: int32(len(mspids)),
|
||||||
|
Rules: participantSigsPolicy,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
Identities: principals,
|
||||||
|
}
|
||||||
|
|
||||||
|
spBytes, err := proto.Marshal(policy)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
err = ctx.GetStub().SetStateValidationParameter(assetId, spBytes)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to set validation parameter on auction: %v", err)
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
|
||||||
|
// create the defalt policy for an auction with an auditor
|
||||||
|
|
||||||
|
// create the auditor identity and signature policy
|
||||||
|
auditorMSP, err := proto.Marshal(
|
||||||
|
&msp.MSPRole{
|
||||||
|
Role: msp.MSPRole_PEER,
|
||||||
|
MspIdentifier: "Org3MSP",
|
||||||
|
},
|
||||||
|
)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
principals = append(principals, &msp.MSPPrincipal{
|
||||||
|
PrincipalClassification: msp.MSPPrincipal_ROLE,
|
||||||
|
Principal: auditorMSP,
|
||||||
|
},
|
||||||
|
)
|
||||||
|
// Create the policies in case the auditor is needed. In this case, an
|
||||||
|
// auditor and 1 participant can update the auction.
|
||||||
|
auditorPolicies := make([]*common.SignaturePolicy, 2)
|
||||||
|
auditorPolicies[0] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_SignedBy{
|
||||||
|
SignedBy: int32(len(principals) - 1),
|
||||||
|
},
|
||||||
|
}
|
||||||
|
auditorPolicies[1] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: 1,
|
||||||
|
Rules: participantSigsPolicy,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
|
||||||
|
// For two organizations, the auditor policy below is equivilent to
|
||||||
|
// AND(auditor, OR(Org1, Org2))
|
||||||
|
policies := make([]*common.SignaturePolicy, 2)
|
||||||
|
policies[0] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: 2,
|
||||||
|
Rules: auditorPolicies,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
// Participants can also update the auction without an auditor
|
||||||
|
policies[1] = &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: int32(len(mspids)),
|
||||||
|
Rules: participantSigsPolicy,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
// Either the auditor policy or the participant policy can update
|
||||||
|
// the auction. For example, for two organizations, the full policy would be
|
||||||
|
// equivilent to OR(AND(Org1, Org2),AND(auditor, OR(Org1, Org2)))
|
||||||
|
policy := &common.SignaturePolicyEnvelope{
|
||||||
|
Version: 0,
|
||||||
|
Rule: &common.SignaturePolicy{
|
||||||
|
Type: &common.SignaturePolicy_NOutOf_{
|
||||||
|
NOutOf: &common.SignaturePolicy_NOutOf{
|
||||||
|
N: 1,
|
||||||
|
Rules: policies,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
Identities: principals,
|
||||||
|
}
|
||||||
|
spBytes, err := proto.Marshal(policy)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
err = ctx.GetStub().SetStateValidationParameter(assetId, spBytes)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to set validation parameter on auction: %v", err)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
||||||
23
auction-dutch/chaincode-go/smartContract.go
Normal file
23
auction-dutch/chaincode-go/smartContract.go
Normal file
|
|
@ -0,0 +1,23 @@
|
||||||
|
/*
|
||||||
|
SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
package main
|
||||||
|
|
||||||
|
import (
|
||||||
|
"log"
|
||||||
|
|
||||||
|
"github.com/hyperledger/fabric-contract-api-go/contractapi"
|
||||||
|
auction "github.com/hyperledger/fabric-samples/auction/dutch-auction/chaincode-go/smart-contract"
|
||||||
|
)
|
||||||
|
|
||||||
|
func main() {
|
||||||
|
auctionSmartContract, err := contractapi.NewChaincode(&auction.SmartContract{})
|
||||||
|
if err != nil {
|
||||||
|
log.Panicf("Error creating auction chaincode: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if err := auctionSmartContract.Start(); err != nil {
|
||||||
|
log.Panicf("Error starting auction chaincode: %v", err)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -29,14 +29,14 @@ Note that we use the `-ca` flag to deploy the network using certificate authorit
|
||||||
|
|
||||||
Run the following command to deploy the auction smart contract. We will override the default endorsement policy to allow any channel member to create an auction without requiring an endorsement from another organization.
|
Run the following command to deploy the auction smart contract. We will override the default endorsement policy to allow any channel member to create an auction without requiring an endorsement from another organization.
|
||||||
```
|
```
|
||||||
./network.sh deployCC -ccn auction -ccp ../auction/chaincode-go/ -ccl go -ccep "OR('Org1MSP.peer','Org2MSP.peer')"
|
./network.sh deployCC -ccn auction -ccp ../auction-simple/chaincode-go/ -ccl go -ccep "OR('Org1MSP.peer','Org2MSP.peer')"
|
||||||
```
|
```
|
||||||
|
|
||||||
## Install the application dependencies
|
## Install the application dependencies
|
||||||
|
|
||||||
We will interact with the auction smart contract through a set of Node.js applications. Change into the `application-javascript` directory:
|
We will interact with the auction smart contract through a set of Node.js applications. Change into the `application-javascript` directory:
|
||||||
```
|
```
|
||||||
cd fabric-samples/auction/application-javascript
|
cd fabric-samples/auction-simple/application-javascript
|
||||||
```
|
```
|
||||||
|
|
||||||
From this directory, run the following command to download the application dependencies:
|
From this directory, run the following command to download the application dependencies:
|
||||||
|
|
@ -398,7 +398,7 @@ The transaction was successfully endorsed by both Org1 and Org2, who both calcul
|
||||||
|
|
||||||
## Clean up
|
## Clean up
|
||||||
|
|
||||||
When your are done using the auction smart contract, you can bring down the network and clean up the environment. In the `auction/application-javascript` directory, run the following command to remove the wallets used to run the applications:
|
When your are done using the auction smart contract, you can bring down the network and clean up the environment. In the `auction-simple/application-javascript` directory, run the following command to remove the wallets used to run the applications:
|
||||||
```
|
```
|
||||||
rm -rf wallet
|
rm -rf wallet
|
||||||
```
|
```
|
||||||
5
auction-simple/application-javascript/.eslintignore
Normal file
5
auction-simple/application-javascript/.eslintignore
Normal file
|
|
@ -0,0 +1,5 @@
|
||||||
|
#
|
||||||
|
# SPDX-License-Identifier: Apache-2.0
|
||||||
|
#
|
||||||
|
|
||||||
|
coverage
|
||||||
36
auction-simple/application-javascript/.eslintrc.js
Normal file
36
auction-simple/application-javascript/.eslintrc.js
Normal file
|
|
@ -0,0 +1,36 @@
|
||||||
|
/*
|
||||||
|
* SPDX-License-Identifier: Apache-2.0
|
||||||
|
*/
|
||||||
|
|
||||||
|
module.exports = {
|
||||||
|
env: {
|
||||||
|
node: true,
|
||||||
|
mocha: true
|
||||||
|
},
|
||||||
|
parserOptions: {
|
||||||
|
ecmaVersion: 8,
|
||||||
|
sourceType: 'script'
|
||||||
|
},
|
||||||
|
extends: 'eslint:recommended',
|
||||||
|
rules: {
|
||||||
|
indent: ['error', 'tab'],
|
||||||
|
'linebreak-style': ['error', 'unix'],
|
||||||
|
quotes: ['error', 'single'],
|
||||||
|
semi: ['error', 'always'],
|
||||||
|
'no-unused-vars': ['error', { args: 'none' }],
|
||||||
|
'no-console': 'off',
|
||||||
|
curly: 'error',
|
||||||
|
eqeqeq: 'error',
|
||||||
|
'no-throw-literal': 'error',
|
||||||
|
strict: 'error',
|
||||||
|
'no-var': 'error',
|
||||||
|
'dot-notation': 'error',
|
||||||
|
'no-trailing-spaces': 'error',
|
||||||
|
'no-use-before-define': 'error',
|
||||||
|
'no-useless-call': 'error',
|
||||||
|
'no-with': 'error',
|
||||||
|
'operator-linebreak': 'error',
|
||||||
|
yoda: 'error',
|
||||||
|
'quote-props': ['error', 'as-needed']
|
||||||
|
}
|
||||||
|
};
|
||||||
Loading…
Reference in a new issue