AnthonyLimo/blockchain-vote

A simple hyperledger voting application

blockchain-vote

Install dependencies

1. Download and install Docker: https://www.docker.com/products/docker#/mac (or brew install docker)
2. Download and install Go: https://golang.org/doc/install (or brew install golang)
3. Download and install Node.js: https://nodejs.org/en/download/

Set up your GO workspace

1. Create a directory to act as your Go workspace. Suggestion: ~/dev/go.
2. In your Go workspace mkdir -p src/github.com/
3. In .../go/src/github.com add the hyperledger Go code:

mkdir hyperledger
cd hyperledger
git clone -b v0.6 http://gerrit.hyperledger.org/r/fabric
cd fabric
git fetch
git checkout v0.6

4. In your ~/.zshrc file add export GOPATH=$HOME/dev/go or whatever that path is.

Run the application

In your dev directory. Assumed for this guide: ~/dev

git clone git@github.com:DecodedCo/blockchain-vote.git
cd blockchain-vote

Docker

Make sure you have Docker running on your mac, then:

cd ~/dev/blockchain-vote/docker-compose
docker pull hyperledger/fabric-peer:latest
docker pull hyperledger/fabric-membersrvc:latest

Wait a few moments then

cd one-peer-one-ca
docker-compose up

Go

Open up a new shell, then:

cd ~/dev/blockchain-vote/golang-chaincode
go build .

Wait a moment then:

CORE_CHAINCODE_ID_NAME=DecodedBlockChain CORE_PEER_ADDRESS=0.0.0.0:7051 ./golang-chaincode

Node

Open up another new shell, then:

cd ~/dev/blockchain-vote/node-server
npm install
npm start

Open a web browser and navigate to localhost:3000

Shutting down

Docker

Open up a fourth shell, then:

cd ~/dev/blockchain-vote/docker-compose/one-peer-one-ca
docker-compose stop

That stops the process and preserves the state of the blockchain. To delete the blockchain, run:

docker rm -f $(docker ps -aq)

Go and Node

The Go chaincode should stop running when the docker container stops. If not, the Go and Node processes can be stopped using ctrl+C