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Parth2404Parth2404
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Added code for live listing for events
1. Code setup with react + vite + tailwing 2. Added code to connect to mainnet rpc and then instantiated an contract to subscribe to it's events 3. displayed the events to a table directly
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‎.env-sample

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VITE_INFURA_KEY=

‎.gitignore

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# Logs
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logs
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*.log
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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pnpm-debug.log*
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lerna-debug.log*
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node_modules
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dist
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dist-ssr
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*.local
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# Editor directories and files
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.vscode/*
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!.vscode/extensions.json
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.idea
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.DS_Store
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*.suo
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*.ntvs*
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*.njsproj
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*.sln
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*.sw?
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.env

‎index.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<link rel="icon" type="image/svg+xml" href="/vite.svg" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Vite + React + TS</title>
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</head>
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<body>
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<div id="root"></div>
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<script type="module" src="/src/main.tsx"></script>
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</body>
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</html>

‎package.json

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{
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"name": "live-event-listener",
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"private": true,
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"version": "0.0.0",
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"type": "module",
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"scripts": {
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"dev": "vite",
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"build": "tsc && vite build",
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"preview": "vite preview"
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},
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"dependencies": {
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"ethers": "^6.3.0",
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"react": "^18.2.0",
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"react-dom": "^18.2.0"
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},
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"devDependencies": {
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"@types/react": "^18.0.28",
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"@types/react-dom": "^18.0.11",
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"@vitejs/plugin-react": "^3.1.0",
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"autoprefixer": "^10.4.14",
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"postcss": "^8.4.21",
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"tailwindcss": "^3.3.1",
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"typescript": "^4.9.3",
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"vite": "^4.2.0"
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}
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}
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‎postcss.config.js

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export default {
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plugins: {
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tailwindcss: {},
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autoprefixer: {},
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},
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}

‎public/vite.svg

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Loading

‎src/App.css

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#root {
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max-width: 1280px;
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margin: 0 auto;
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padding: 2rem;
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text-align: center;
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}
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.logo {
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height: 6em;
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padding: 1.5em;
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will-change: filter;
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transition: filter 300ms;
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}
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.logo:hover {
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filter: drop-shadow(0 0 2em #646cffaa);
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}
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.logo.react:hover {
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filter: drop-shadow(0 0 2em #61dafbaa);
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}
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@keyframes logo-spin {
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from {
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transform: rotate(0deg);
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}
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to {
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transform: rotate(360deg);
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}
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}
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@media (prefers-reduced-motion: no-preference) {
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a:nth-of-type(2) .logo {
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animation: logo-spin infinite 20s linear;
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}
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}
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.card {
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padding: 2em;
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}
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.read-the-docs {
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color: #888;
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}

‎src/App.tsx

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import { useEffect, useState } from "react";
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import reactLogo from "./assets/react.svg";
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import viteLogo from "/vite.svg";
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import "./App.css";
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import { EventData } from "./ethers/types";
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import { getEventsData } from "./ethers/connection";
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import EventsTable from "./components/table";
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function App() {
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const [eventList, setEventList] = useState(Array<EventData>);
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useEffect(() => {
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// Start lisitning for events
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getEventsData((from: string, to: string, value: string, event: string) => {
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eventList.push({ from, to, value, event });
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setEventList([...eventList]);
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});
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}, []);
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return (
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<div className="App flex flex-col content-center">
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<EventsTable
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headings={["Sr No", "from", "to", "value", "trx detail", "event name"]}
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data={eventList}
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/>
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<p className="text-xs mt-2">
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{eventList.length == 0 ? "No events emitted yet, please wait..." : ""}
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</p>
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</div>
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);
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}
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export default App;
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