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Diff for: ‎README.md

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# React + TypeScript + Vite
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This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
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Currently, two official plugins are available:
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- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
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- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
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## Expanding the ESLint configuration
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If you are developing a production application, we recommend updating the configuration to enable type aware lint rules:
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- Configure the top-level `parserOptions` property like this:
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```js
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export default tseslint.config({
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languageOptions: {
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// other options...
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parserOptions: {
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project: ['./tsconfig.node.json', './tsconfig.app.json'],
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tsconfigRootDir: import.meta.dirname,
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},
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},
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})
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```
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- Replace `tseslint.configs.recommended` to `tseslint.configs.recommendedTypeChecked` or `tseslint.configs.strictTypeChecked`
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- Optionally add `...tseslint.configs.stylisticTypeChecked`
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- Install [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react) and update the config:
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```js
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// eslint.config.js
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import react from 'eslint-plugin-react'
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export default tseslint.config({
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// Set the react version
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settings: { react: { version: '18.3' } },
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plugins: {
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// Add the react plugin
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react,
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},
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rules: {
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// other rules...
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// Enable its recommended rules
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...react.configs.recommended.rules,
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...react.configs['jsx-runtime'].rules,
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},
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})
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```

Diff for: ‎eslint.config.js

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import js from '@eslint/js'
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import globals from 'globals'
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import reactHooks from 'eslint-plugin-react-hooks'
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import reactRefresh from 'eslint-plugin-react-refresh'
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import tseslint from 'typescript-eslint'
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export default tseslint.config(
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{ ignores: ['dist'] },
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{
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extends: [js.configs.recommended, ...tseslint.configs.recommended],
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files: ['**/*.{ts,tsx}'],
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languageOptions: {
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ecmaVersion: 2020,
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globals: globals.browser,
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},
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plugins: {
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'react-hooks': reactHooks,
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'react-refresh': reactRefresh,
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},
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rules: {
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...reactHooks.configs.recommended.rules,
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'react-refresh/only-export-components': [
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'warn',
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{ allowConstantExport: true },
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],
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},
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},
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)

Diff for: ‎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>

Diff for: ‎package.json

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{
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"name": "polkadotwtf",
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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 -b && vite build",
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"lint": "eslint .",
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"preview": "vite preview"
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},
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"dependencies": {
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"nats.ws": "^1.10.0",
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"react": "^18.3.1",
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"react-dom": "^18.3.1"
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},
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"devDependencies": {
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"@eslint/js": "^9.11.1",
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"@types/react": "^18.3.10",
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"@types/react-dom": "^18.3.0",
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"@vitejs/plugin-react": "^4.3.2",
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"eslint": "^9.11.1",
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"eslint-plugin-react-hooks": "^5.1.0-rc.0",
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"eslint-plugin-react-refresh": "^0.4.12",
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"globals": "^15.9.0",
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"typescript": "^5.5.3",
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"typescript-eslint": "^8.7.0",
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"vite": "^5.4.8"
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}
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}

Diff for: ‎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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}

Diff for: ‎src/App.tsx

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import { useEffect, useState } from 'react';
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import { connect, StringCodec } from 'https://cdn.jsdelivr.net/npm/[email protected]/esm/nats.js';
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import './contentstyle.css'; // main content styles
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type ChainMetrics = {
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tps: number;
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block: number;
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weight: number;
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kbps: number;
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};
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type ChainName = 'Westend' | 'Polkadot' | 'Kusama' | 'Paseo';
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const chains: ChainName[] = ['Westend', 'Polkadot', 'Kusama', 'Paseo'];
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const App = () => {
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const [tpsData, setTpsData] = useState<Record<ChainName, ChainMetrics>>({
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Westend: { tps: 0, block: 0, weight: 0, kbps: 0 },
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Polkadot: { tps: 0, block: 0, weight: 0, kbps: 0 },
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Kusama: { tps: 0, block: 0, weight: 0, kbps: 0 },
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Paseo: { tps: 0, block: 0, weight: 0, kbps: 0 },
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});
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const sc = new StringCodec();
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useEffect(() => {
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const tpsTracker: Record<ChainName, { count: number; lastUpdated: number }> = {
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Westend: { count: 0, lastUpdated: Date.now() },
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Polkadot: { count: 0, lastUpdated: Date.now() },
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Kusama: { count: 0, lastUpdated: Date.now() },
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Paseo: { count: 0, lastUpdated: Date.now() },
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};
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const updateTPS = (chain: ChainName, extrinsicsCount: number) => {
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const now = Date.now();
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const chainStats = tpsTracker[chain];
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if (now - chainStats.lastUpdated >= 1000) {
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const tps = chainStats.count;
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const block = Math.floor(Math.random() * 100000); // mock block number
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const weight = Math.floor(Math.random() * 1000); // mock weight
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const kbps = Math.random() * 10; // mock kb/s
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setTpsData((prevData) => ({
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...prevData,
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[chain]: { tps, block, weight, kbps },
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}));
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chainStats.count = 0;
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chainStats.lastUpdated = now;
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}
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chainStats.count += extrinsicsCount;
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};
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const handleMessageForTPS = (msg: any) => {
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const blockData = sc.decode(msg.data);
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const parsedData = JSON.parse(blockData);
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const chain = msg.subject.split('.')[0] as ChainName;
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const extrinsicsCount = parsedData.extrinsics.length;
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updateTPS(chain, extrinsicsCount);
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};
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const setupNatsConnection = async () => {
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const nc = await connect({ servers: ['wss://dev.dotsentry.xyz/ws'] });
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const subscriptions = await Promise.all(
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chains.map((chain) =>
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nc.subscribe(`${chain}.*.*.*.Blocks.*.BlockContent`),
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)
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);
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subscriptions.forEach(async (sub: any) => {
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for await (const msg of sub) handleMessageForTPS(msg);
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});
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};
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setupNatsConnection();
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}, []);
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return (
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<div className="app-container">
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{/* Title Bar */}
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<div className="titlebar">
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<div className="logo"></div>
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<div className="headerlinks">
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<a href="#">Home</a>
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</div>
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<div className="dropdown">
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<button className="dropdowntext">Polkadot</button>
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<div className="dropdowncontent">
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<a href="#">Learn</a>
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<a href="#">Build</a>
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</div>
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</div>
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<div className="socialshare">
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<div className="twitter"></div>
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</div>
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<div className="currentTime" id="currentTime"></div>
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</div>
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<div className="divider"></div>
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{/* Main Window */}
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<div className="container largecontainer">
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<div className="windowtitle">
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<div className="windowtitlename">polkadot.wtf - built by erin</div>
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</div>
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{/* Content Area */}
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<div className="contentarea">
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<div className="textbox">
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<table className="chain-table">
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<thead>
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<tr>
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<th>Chain Name</th>
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<th>Block</th>
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<th>TPS</th>
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<th>Weight</th>
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<th>KB/s</th>
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</tr>
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</thead>
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<tbody>
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{chains.map((chain, index) => (
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<tr key={index}>
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<td>{chain}</td>
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<td>{tpsData[chain].block}</td>
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<td>{tpsData[chain].tps}</td>
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<td>{tpsData[chain].weight}</td>
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<td>{tpsData[chain].kbps.toFixed(2)}</td>
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</tr>
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))}
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{[...Array(5)].map((_, i) => (
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<tr key={`placeholder-${i}`}>
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<td>Future Chain {i + 1}</td>
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<td>--</td>
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<td>--</td>
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<td>--</td>
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<td>--</td>
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</tr>
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))}
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</tbody>
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</table>
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</div>
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</div>
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</div>
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{/* Bottom Panel */}
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<div className="bottompanel"></div>
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</div>
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);
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};
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export default App;

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Diff for: ‎src/assets/react.svg

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