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eth2explorer.html
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eth2explorer.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Blockchain Explorer</title>
<!-- Bootstrap -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<!-- Styles -->
<style>
body {
padding-top: 20px;
}
h1 {
margin: 20px 0px;
}
</style>
</head>
<body style="background-color: silver;>
<div class="container">
<div class="row">
<div class="col-lg-12 text-center" >
<img src="img/eth2.png">
<h1>Blockchain Explorer</h1>
<h3> Latest 20 blocks </h3>
<table class="table">
<thead>
<tr>
<th scope="col">TxHash</th>
<th scope="col">Block</th>
<th scope="col">Timestamp</th>
<th scope="col">Gas Used</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</div>
</div>
</div>
<!-- Bootstrap -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<!-- Web3 -->
<script src="https://cdn.jsdelivr.net/gh/ethereum/web3.js/dist/web3.min.js"></script>
<script> //https://v2.scrimba.com/learn-javascript-c0v/~07 https://docs.web3js.org/guides/wallet/web3_modal_guide/#smart-contract-interaction
var provider = 'https://'; //Your Infura Endpoint https://community.infura.io/t/web3-js-how-to-retrieve-the-balance-of-an-erc-20-token/5232
var web3Provider = new Web3.providers.HttpProvider(provider);
var web3 = new Web3(web3Provider);
var latestBlock = web3.eth.blockNumber;
// List blocks in table
for (var i = 0; i < 20; i++) {
var block = web3.eth.getBlock(latestBlock - i);
var number = block.number;
var hash = block.hash;
var time = block.timestamp;
var gas = block.gasUsed;
//var sender = web3.eth.getTransaction(hash.from);
convertTimestamp(time);
function convertTimestamp(time) {
var d = new Date(time * 1000), // Convert the passed timestamp to milliseconds
yyyy = d.getFullYear(),
mm = ('0' + (d.getMonth() + 1)).slice(-2), // Months are zero based. Add leading 0.
dd = ('0' + d.getDate()).slice(-2), // Add leading 0.
hh = d.getHours(),
h = hh,
min = ('0' + d.getMinutes()).slice(-2), // Add leading 0.
ampm = 'AM',
time;
if (hh > 12) {
h = hh - 12;
ampm = 'PM';
} else if (hh === 12) {
h = 12;
ampm = 'PM';
} else if (hh == 0) {
h = 12;
}
// ie: 2014-03-24, 3:00 PM
time1 = yyyy + '-' + mm + '-' + dd + ', ' + h + ':' + min + ' ' + ampm;
return time1;
}
$('tbody').append("<tr><td>" + hash + "</td><td>" + number + "</td><td>" + time1 + "</td><td>" + gas + "</tr>");
}
</script>
</body>
</html>