ethereumjs / browser-builds

[DEPRECATED] Browser builds of ethereumjs libraries.

DEPRECATED

This repository has been deprecated.

We are targeting to deliver browser-friendly versions of the libraries along published package releases. If you are running into problems please open an issue on the respective repository.

Questions?

ethereumjs - Browser Builds

This repository contains browser builds of the following ethereumjs libraries:

• ethereumjs-vm
• ethereumjs-tx
• ethereumjs-wallet
• ethereumjs-wallet-hd
• ethereumjs-wallet-thirdparty
• ethereumjs-icap
• ethereumjs-abi
• ethereumjs-all

They are built using browserify with a known set of working dependencies.

For every library/build collection there is a larger plain source version also including the source mappings (e.g. ethereumjs-vm-x.x.x.js) and a minified version for use in production (e.g. ethereumjs-vm-x.x.x.min.js).

Usage

In your web application, include only one of the builds from the dist directory. All exports will be available under the global ethereumjs.

Note: all packages expect ECMAScript 6 (ES6) as a minimum environment. From browsers lacking ES6 support, please use a shim (like es6-shim) before including any of the builds from this repo.

Examples

Examples for usage of the browser builds can be found in the examples directory:

• examples/

Start an http-server from the main directory of the repository to run the examples in the browser.

Build

Builds are done using the .js exports compilation files from the src/ directory and using the build.js script from the main directory to create the build in the dist/ folder.

Version numbers for the builds are directly extracted from the versions installed in the local node_modules folder.

For creating new builds:

1. Change package.json to require desired/up-to-date versions of the libraries
2. Reinstall/update local node_modules packages
3. Run npm run build to generate new set of builds

browser-builds's Issues

Disable source mapping or create it as a separate file

For example it takes up almost half of the 7Mbs of this file: https://raw.githubusercontent.com/ethereumjs/browser-builds/master/dist/ethereumjs-vm/ethereumjs-vm-2.3.1.js

I think it used to be much smaller before the switch in the build system due to not including the source mapping.

toV3 / toV3String extremely slow and intensive

I haven't done extensive testing but the few calls I've made with toV3("pass") and toV3String("pass") all bring the CPU to 100% for about 30 seconds. I feel that may be abnormally high and hope it can be resolved. The code I run:

var wallet1 = EthJS.Wallet.generate();
var save = a.toV3String("pass"); // takes 12-20 seconds about, and brings cpu to 100%
// and also
var wallet2 = EthJS.Wallet.fromV3(save,"pass"); // same symptoms

Is there any other way to load/save a wallet as a string? The sluggishness of this will limit applications.

thanks.

Fail to sign transaction in Android browser

Case Scenario:
call tx.sign method in Android Smart Phone, exception raised: has no method 'assign' as:

it works on desktop and IOS.

Buffer is not defined ?

When including dist/ethereumjs-tx.js

And running some very basic example code in an html file:

const EthereumTx = EthJS.Tx
const privateKey = Buffer.from('e331b6d69882b4cb4ea581d88e0b604039a3de5967688d3dcffdd2270c0fd109', 'hex')

const txParams = {
  nonce: '0x00',
  gasPrice: '0x09184e72a000', 
  gasLimit: '0x2710',
  to: '0x0000000000000000000000000000000000000000', 
  value: '0x00', 
  data: '0x7f7465737432000000000000000000000000000000000000000000000000000000600057',
  // EIP 155 chainId - mainnet: 1, ropsten: 3
  chainId: 3
}

const tx = new EthereumTx(txParams)
tx.sign(privateKey)
const serializedTx = tx.serialize()

I am seeing a Buffer is not defined error. I notice the dist file is not minified and hasn't been updated since august. Is this library still maintained or are there better alternatives?

Uncaught ReferenceError: ethereumjs is not defined

Hi, I'm getting this error when I used ethereumjs-tx-1.3.3.min.js in my web page.

<script type="https://raw.githubusercontent.com/ethereumjs/browser-builds/master/dist/ethereumjs-tx/ethereumjs-tx-1.3.3.min.js"></script>

 var Tx  = new ethereumjs.Tx();

Cannot use the browserified version of ethereumjs-tx in react-native

I am desesperately trying to use ethereumjs-tx in react native.
But I am facing an issue: the browserified bundle of ethereumjs-tx is reference inner require (of md5 for example) and react native is trying to resolve them outside (i mean in a sibling position)

Have you ever tried to use your library in React native and if so , is there a recipee to make it work

thanx

Firefox 48.0 ethereum-tx ethUtil.pubToAddress bug in Buffer.slice

Browser: Firefox 48.0
OS: Windows 7, Windows 8.1

var address = ethUtil.pubToAddress("0x045614e693becd6b8cdcb393a9529e44c73f73c3416e623f5bd0e07c57cb49ad30142a77b9545c8cb49350354324a9b24479d7bc322484c5fc9ee3b79343445f92");
console.log(address);
// returns string "[object Object]"