The educational core of the Ethereum movement
{
// Try changing the method field in this JSON request to some different values as defined in the JSON-RPC documentation.
let JSONrequest = '{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":1}'
// Try changing this endpoint to an Infura node or another public facing client
let endpoint = 'http://127.0.0.1:8545' // if localhost isn't working, try '127.0.0.1:8545'
let requestPromise = new Promise((resolve, reject) => {
let req = new XMLHttpRequest();
req.addEventListener("load", function(){ resolve(JSON.parse(this.responseText)) });
req.open("POST", endpoint);
req.setRequestHeader('content-type', 'application/json');
req.send(JSONrequest)
})
return requestPromise
}
web3js = new Web3(new Web3.providers.HttpProvider('http://localhost:8545'))
version = web3js.version
metamask = new Web3(web3.currentProvider)
ethers = require('ethers')
ethersProvider = new ethers.providers.Web3Provider(new web3.providers.HttpProvider('http://localhost:8545'))
accounts = web3js.eth.accounts
MMaccount = await ethereum.enable()
balance = web3js.eth.getBalance(accounts[0])
MMbalance = new Promise((resolve, reject) => {
metamask.eth.getBalance(MMaccount, (err, result) => { resolve(result) })
})
balance.toNumber()
web3js.fromWei(balance, 'ether').toNumber()
web3js.fromWei(MMbalance, 'ether').toNumber()
txHash = web3js.eth.sendTransaction({from: accounts[0], to:accounts[1], value: web3js.toWei('1', 'ether')})
receipt = new Promise((resolve, reject) => {
web3js.eth.getTransaction(txHash, (err, result) => { resolve(result) })
})
web3js.fromWei(web3js.eth.getBalance(accounts[0]).toNumber(), 'ether')
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