Package Exports

web3
web3/package.json

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (web3) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

web3.js has moved from 0.x.x to 1.x.x. This is a majore refactor, please read the following guide to update your dapp.

web3.js - Ethereum JavaScript API

This is the Ethereum compatible JavaScript API which implements the Generic JSON RPC spec. It's available on npm as a node module, for bower and component as an embeddable js and as a meteor.js package.

You need to run a local Ethereum node to use this library.

Documentation

Installation

Node.js

npm install web3

Meteor.js

meteor add ethereum:web3

As Browser module

Bower

bower install web3

Component

component install ethereum/web3.js

Include web3.min.js in your html file. (not required for the meteor package)

Usage

Use the web3 object directly from global namespace:

console.log(web3); // {eth: .., shh: ...} // it's here!

Set a provider (HttpProvider)

web3.setProvider(new web3.providers.HttpProvider('http://localhost:8545'));

There you go, now you can use it:

var coinbase = web3.eth.coinbase;
var balance = web3.eth.getBalance(coinbase);

You can find more examples in example directory.

Documentation

Documentation can be found at read the docs

Requirements

Node.js
npm

sudo apt-get update
sudo apt-get install nodejs
sudo apt-get install npm
sudo apt-get install nodejs-legacy

Building (gulp)

npm run-script build

Testing (mocha)

npm test