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fabric-samples/README.md
Vinay Chaudhary 6a563161f8
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Hyperledger Fabric Samples

First of all start the three terminals.

Terminal 1 Start the Fabric Network

To start the fabric network on your local machine, First navigate to the chaincode-docker-devmode directory and tag the all images as latest in the docker-compose-simple.yaml file.

docker-compose -f docker-compose-simple.yaml up

Above command download the all required images and start the network with the SingleSampleMSPSolo orderer profile and launches the peer in development mode. It also launches two additional containers one is chaincode and a CLI to interact with the chaincode.Running the command you will see the following

D:\fabric-samples-release-1.1\chaincode-docker-devmode>docker-compose -f docker-compose-simple.yaml up Pulling orderer (hyperledger/fabric-orderer:x86_64-1.0.0)... x86_64-1.0.0: Pulling from hyperledger/fabric-orderer aafe6b5e13de: Pull complete 0a2b43a72660: Pull complete

Terminal 2 Run ChainCode Container. Build and Start ChainCode

docker exec -it chaincode bash

You should see the following:

root@d2629980e76b:/opt/gopath/src/chaincode#

Now, compile your chaincode:

.chaincode/sacc# go build

Now mention and run the chaincode on the peer:

CORE_PEER_ADDRESS=peer:7051 CORE_CHAINCODE_ID_NAME=xyz:0 ./sacc

Terminal 3 - Use the chaincode

We’ll leverage the CLI container to drive these calls.

docker exec -it cli bash

You should see the following:

root@d2629980e76b:/opt/gopath/src/chaincode#

peer chaincode install -p chaincodedev/chaincode/sacc -n xyz -v 0

peer chaincode instantiate -n xyz -v 0 -c '{"Args":["a","50"]}' -C myc

Now issue an invoke to change the value of “a” to “500”.

peer chaincode invoke -n xyz -c '{"Function":"set","Args":["a", "500"]}' -C myc

Finally, query a. We should see a value of 500.

peer chaincode query -n xyz -c '{"Function":"get","Args":["query","a"]}' -C myc

License

Hyperledger Project source code files are made available under the Apache License, Version 2.0 (Apache-2.0), located in the LICENSE file. Hyperledger Project documentation files are made available under the Creative Commons Attribution 4.0 International License (CC-BY-4.0), available at http://creativecommons.org/licenses/by/4.0/.