forked from cerc-io/plugeth
102 lines
2.5 KiB
Markdown
102 lines
2.5 KiB
Markdown
# Ethereum JavaScript API
|
|
|
|
This is the Ethereum compatible JavaScript API using `Promise`s
|
|
which implements the [Generic JSON RPC](https://github.com/ethereum/wiki/wiki/Generic-JSON-RPC) spec. It's available on npm as a node module and also for bower and component as an embeddable js
|
|
|
|
[![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![dependency status][dep-image]][dep-url] [![dev dependency status][dep-dev-image]][dep-dev-url]
|
|
|
|
<!-- [](https://ci.testling.com/ethereum/ethereum.js) -->
|
|
|
|
## Installation
|
|
|
|
### Node.js
|
|
|
|
npm install ethereum.js
|
|
|
|
### For browser
|
|
Bower
|
|
|
|
bower install ethereum.js
|
|
|
|
Component
|
|
|
|
component install ethereum/ethereum.js
|
|
|
|
* Include `ethereum.min.js` in your html file.
|
|
* Include [es6-promise](https://github.com/jakearchibald/es6-promise) or another ES6-Shim if your browser doesn't support ECMAScript 6.
|
|
|
|
## Usage
|
|
Require the library:
|
|
|
|
var web3 = require('web3');
|
|
|
|
Set a provider (QtProvider, WebSocketProvider, HttpRpcProvider)
|
|
|
|
var web3.setProvider(new web3.providers.WebSocketProvider('ws://localhost:40404/eth'));
|
|
|
|
There you go, now you can use it:
|
|
|
|
```
|
|
web3.eth.coinbase.then(function(result){
|
|
console.log(result);
|
|
return web3.eth.balanceAt(result);
|
|
}).then(function(balance){
|
|
console.log(web3.toDecimal(balance));
|
|
}).catch(function(err){
|
|
console.log(err);
|
|
});
|
|
```
|
|
|
|
|
|
For another example see `example/index.html`.
|
|
|
|
## Contribute!
|
|
|
|
### Requirements
|
|
|
|
* Node.js
|
|
* npm
|
|
* gulp (build)
|
|
* mocha (tests)
|
|
|
|
```bash
|
|
sudo apt-get update
|
|
sudo apt-get install nodejs
|
|
sudo apt-get install npm
|
|
sudo apt-get install nodejs-legacy
|
|
```
|
|
|
|
### Building (gulp)
|
|
|
|
```bash
|
|
npm run-script build
|
|
```
|
|
|
|
|
|
### Testing (mocha)
|
|
|
|
```bash
|
|
npm test
|
|
```
|
|
|
|
**Please note this repo is in it's early stage.**
|
|
|
|
If you'd like to run a WebSocket ethereum node check out
|
|
[go-ethereum](https://github.com/ethereum/go-ethereum).
|
|
|
|
To install ethereum and spawn a node:
|
|
|
|
```
|
|
go get github.com/ethereum/go-ethereum/ethereum
|
|
ethereum -ws -loglevel=4
|
|
```
|
|
|
|
[npm-image]: https://badge.fury.io/js/ethereum.js.png
|
|
[npm-url]: https://npmjs.org/package/ethereum.js
|
|
[travis-image]: https://travis-ci.org/ethereum/ethereum.js.svg
|
|
[travis-url]: https://travis-ci.org/ethereum/ethereum.js
|
|
[dep-image]: https://david-dm.org/ethereum/ethereum.js.svg
|
|
[dep-url]: https://david-dm.org/ethereum/ethereum.js
|
|
[dep-dev-image]: https://david-dm.org/ethereum/ethereum.js/dev-status.svg
|
|
[dep-dev-url]: https://david-dm.org/ethereum/ethereum.js#info=devDependencies
|