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105 lines
3.9 KiB
Markdown
105 lines
3.9 KiB
Markdown
# farm-chain POC with Fabric v1.4
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---
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## Setting up Hyperledger Fabric and Dependencies
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### Remove any pre-existing containers and images:
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``$ docker rm -f $(docker -q)`` \
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``$ docker rmi -f $(docker ps -aq)``
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If you have not used docker previously on the same machine follow the step 1.
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1. Docker - Guide (https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-18-04)
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2. NodeJS - Guide (https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-18-04)
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3. Hyperledger Fabric v1.4 and above
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### Setup Golang language:
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```bash
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curl -O https://storage.googleapis.com/golang/go1.11.1.linux-amd64.tar.gz
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sha256sum go1.11.1.linux-amd64.tar.gz
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tar -xvf go1.11.1.linux-amd64.tar.gz
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sudo mv go /usr/local
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```
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Add the following paths to the bashrc file
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```bash
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export GOPATH=$HOME/go
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export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin
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```
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Re-source the bash script
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```bash
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source ~/.bashrc
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source ~/.bashrc
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```
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### Get fabric-samples and install
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```
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git clone https://github.com/hyperledger/fabric-samples.git
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```
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From the root level of the fabric-samples directory:
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```
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$ ./scripts/bootstrap.h
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```
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## Start the Hyperledger Fabric network for the POC
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From the root level of this project
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```
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$ ./startFabric.sh >&logs/startup_logs.txt
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```
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On first run of the project: install the required node js libraries, register the Admin and User components of our network, and start the server:
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```
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$ npm install
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```
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If this throws some errors, try running ``$ npm update`` and then ``$npm install``
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Enroll the admin user:
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```
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$ node enrollAdmin.js
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```
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Expected output:
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```markdown
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Store path:/home/sakya/.hfc-key-store
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Successfully loaded admin from persistence
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Assigned the admin user to the fabric client ::{"name":"admin","mspid":"Org1MSP","roles":null,"affiliation":"","enrollmentSecret":"","enrollment":{"signingIdentity":"091d15d647a3053a769faf8f4122e7ac577323b919d00413d6f4e2208337eee9","identity":{"certificate":"-----BEGIN CERTIFICATE-----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\nWCE/AiBdDgWhzztwAtdsV7/y6NXkmvCcJQvgtmz/ga+7gcolIQ==\n-----END CERTIFICATE-----\n"}}}
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```
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Enroll the normal user:
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```
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$ node enrollUser.js
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```
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If you received the following error: ``Failed to register: Error: fabric-ca request register failed with errors [[{"code":20,"message":"Authentication failure"}]]``
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remove the keys from hfc-key-store: ``rm -rf ~/.hfc-key-store/*
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``
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After this, re-enroll the admin and normal user. Successful completion of ``$node enrollUser.js`` should give the following output:
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```markdown
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Successfully loaded admin from persistence
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Successfully registered user1 - secret:MPGQrXnJyxjc
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Successfully enrolled member user "user1"
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User1 was successfully registered and enrolled and is ready to intreact with the fabric network
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```
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*Start the server and browse to ``localhost:8000`` in order to interact with the POC network and ledger*
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```
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$ node server.js >&logs/server_logs.txt
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```
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```markdown
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NOTE: All console logs will be stored in the ``logs`` directory.
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```
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### Transaction flow in the network
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### Stakeholders in the network
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1. Farmer -> invokes - recordProduce()
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2. Buyer -> invokes - queryProduce() / changeProduceOwner()
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3. Regulator -> invokes - queryProduce() / queryAllProduce()
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