qjflores / jaagastudy

dapp to manage accounts on the farm

Truffle Box (React, Redux and Authentication)

All truffle boxes come with Truffle, Webpack and React. This box adds react-router, redux and redux-auth-wrapper for authentication powered by a smart contract. Great for building your own auth system.

Installation

1. Install truffle and an ethereum client. For local development, try EthereumJS TestRPC.

   npm install -g truffle // Version 3.0.5+ required.
   npm install -g ethereumjs-testrpc

2. Clone or download the truffle box of your choice.

   git clone [repo]

3. Install the node dependencies.

   npm install

4. Compile and migrate the contracts.

   truffle compile
   truffle migrate

5. Run the webpack server for front-end hot reloading. For now, smart contract changes must be manually recompiled and migrated.

   npm run start

6. Jest is included for testing React components and Truffle's own suite is incldued for smart contracts. Be sure you've compile your contracts before running jest, or you'll receive some file not found errors.

   // Runs Jest for component tests.
   npm run test
   
   // Runs Truffle's test suite for smart contract tests.
   truffle test

7. To build the application for production, use the build command. A production build will be in the build_webpack folder.

   npm run build

Passing web3 to components through the Redux store

1. Define web3 in your mapStateToProps function in your container component.

       const mapStateToProps = (state, ownProps) => {
     return {
       web3: state.web3
     }
   }
   

2. In your mapDispatchToProps of your container component, pass web3 into the function that you pass as a prop to your presentation component

   const mapDispatchToProps = (dispatch) => {
     return {
       onSignUpFormSubmit: (name, web3) => {
         event.preventDefault();
   
         dispatch(signUpUser(name, web3))
       }
     }
   }
   

3. In the presentation component, set web3 in the state within the constructor function.

FAQ

• Why is there both a truffle.js file and a truffle-config.js file?

  Truffle requires the truffle.js file be named truffle-config on Windows machines. Feel free to delete the file that doesn't correspond to your platform.

• Where is my production build?

  The production build will be in the build_webpack folder. This is because Truffle outputs contract compilations to the build folder.

• Where can I find more documentation?

  All truffle boxes are a marriage of Truffle and a React setup created with create-react-app. Either one would be a great place to start!