burner-provider

burner-provider

Ephemeral key pair web3 provider

Here is an example React app that uses the burner-provider!

npm install burner-provider

Pass BurnerProvider into Web() to initialize:

import BurnerProvider from 'burner-provider';
import Web3 from 'web3';
var web3 = new Web3(new BurnerProvider('http://localhost:8545'));

You can get your address with:

let accounts = await web3.eth.getAccounts()

Now your transactions will automatically sign and send:

var tx = {
  to: this.state.to,
  from: this.state.accounts[0],
  value: this.state.value,
  data: '0x00'
}

web3.eth.sendTransaction(tx).then((receipt)=>{
  console.log("receipt",receipt)
  this.setState({receipt:receipt})
});

You also can access the private key directly with:

localStorage.getItem('metaPrivateKey')

Optional Parameters:

var web3 = new Web3(new BurnerProvider({
  rpcUrl: 'http://localhost:8545',
  namespace: 'YourCoolUrl'
}));

Websockets work too:

var web3 = new Web3(new BurnerProvider('wss://mainnet.infura.io/ws'));

---

Full CLI Example: index.js:

var Web3 = require("web3")
var BurnerProvider = require("burner-provider")
var web3 = new Web3(new BurnerProvider('https://mainnet.infura.io'));
const message = "three six nine the goose drank wine"
web3.eth.getAccounts((err,accounts)=>{
  console.log("accounts:",accounts)
  web3.eth.sign(message,accounts[0],(err,sig)=>{
    console.log("sig",sig)
    let recovered = web3.eth.accounts.recover(message,sig)
    console.log("recovered",recovered)
    console.log("valid:",recovered===accounts[0])
    web3.currentProvider.stop()
  })
})

npm install web3 burner-provider
node index.js