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    legacy-web3

    0.20.6 • Public • Published

    Migration 0.13.0 -> 0.14.0

    web3.js version 0.14.0 supports multiple instances of web3 object. To migrate to this version, please follow the guide:

    -var web3 = require('web3');
    +var Web3 = require('web3');
    +var web3 = new Web3();

    Ethereum JavaScript API

    Join the chat at https://gitter.im/ethereum/web3.js

    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.

    NPM version Build Status dependency status dev dependency status Coverage Status Stories in Ready

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

    Documentation

    Installation

    Node.js

    npm install web3

    Yarn

    yarn add 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)

    if (typeof web3 !== 'undefined') {
      web3 = new Web3(web3.currentProvider);
    } else {
      // set the provider you want from Web3.providers
      web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
    }

    Set a provider (HttpProvider using HTTP Basic Authentication)

    web3.setProvider(new web3.providers.HttpProvider('http://host.url', 0, BasicAuthUsername, BasicAuthPassword));

    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.

    Contribute!

    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

    Community

    Other implementations

    Install

    npm i legacy-web3

    DownloadsWeekly Downloads

    2

    Version

    0.20.6

    License

    LGPL-3.0

    Unpacked Size

    1.44 MB

    Total Files

    76

    Last publish

    Collaborators

    • cruzmolina