Hyperledger Fabric GraphQL Boilerplate

This is a boilerplate to start using hyperledger fabric blockchain with GraphQL

• based on: fabric-boilerplate
• based on GraphQL boilerplate code: graphql-dataloader-boilerplate
• Create-GraphQL was used to generate GraphQL boilerplate

Hire us

You can hire us to build your next blockchain project using Hyperledger and GraphQL - Entria

How to build Go chaincode locally

Install go

brew install go
mkdir ~/.go

Configure GOPATH

add this to .bashrc

export GOPATH="${HOME}/.go"
export GOROOT="$(brew --prefix golang)/libexec"

yarn go:install

then

yarn go:build

Run locally with docker-compose

Clear content of deploy/local before creating new containers

yarn clear

docker-compose up

Test if it is running ok

go to http://localhost:7050/chain

Go to Hyperledger Explorer

go to http://localhost:9090

How to test chaincode

yarn run go:test

How to interact with chain

yarn repl

Query data for an entity (a and b are the valid entities for now)

bl > queryEntity('a')

Transfer coins from an entity to another

bl > transfer('a', 'b', 10)

How to deploy a new chaincode using GraphQL

mutation deployChain {
 Deploy(input: {
  fcn:"init"
  args: ["a", "100", "b", "200"]
  clientMutationId:"1"
    }) {
      results
    }
}