Enhancement: Examples/with-ledger

examples/with-ledger/.eslintrc.json

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+{
+  "extends": "next/core-web-vitals"
+}

examples/with-ledger/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# local env files
+.env*.local
+
+# vercel
+.vercel

examples/with-ledger/README.md

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+This is a sample [Web3Onboard](https://github.com/blocknative/web3-onboard) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app) showing how to integrate the Ledger wallet into your web3 dApp.
+
+## Getting Started
+
+Clone this repo
+
+```
+https://github.com/blocknative/web3-onboard.git
+```
+
+Navigate to the project directory:
+
+```
+cd examples
+```
+
+Install the dependencies:
+
+```
+yarn
+```
+
+Run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+## Learn More
+
+To learn more about how you can use web3Onboard to integrate Ledger and other popular web3 wallets into your dApps, take a look at our documentation: [Web3Onboard Documentation](https://docs.blocknative.com/onboard) for more details.

examples/with-ledger/next.config.js

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+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  reactStrictMode: true,
+  swcMinify: true,
+}
+
+module.exports = nextConfig

examples/with-ledger/package.json

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+{
+  "name": "with-ledger",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@web3-onboard/ledger": "^2.1.6",
+    "@web3-onboard/react": "^2.2.4",
+    "next": "12.2.3",
+    "react": "18.2.0",
+    "react-dom": "18.2.0"
+  },
+  "devDependencies": {
+    "eslint": "8.20.0",
+    "eslint-config-next": "12.2.3"
+  }
+}

examples/with-ledger/pages/_app.js

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+import '../styles/globals.css'
+
+function MyApp({ Component, pageProps }) {
+  return <Component {...pageProps} />
+}
+
+export default MyApp

examples/with-ledger/pages/api/hello.js

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+// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
+
+export default function handler(req, res) {
+  res.status(200).json({ name: 'John Doe' })
+}

examples/with-ledger/pages/index.js

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+import Head from 'next/head'
+import { init, useConnectWallet } from '@web3-onboard/react'
+import ledgerModule from '@web3-onboard/ledger'
+import styles from '../styles/Home.module.css'
+
+const buttonStyles = {
+  borderRadius: '6px',
+  background: '#111827',
+  border: 'none',
+  fontSize: '18px',
+  fontWeight: '600',
+  cursor: 'pointer',
+  color: 'white',
+  padding: '14px 12px',
+  marginTop: '40px',
+  fontFamily: 'inherit'
+}
+
+
+const INFURA__KEY = 'cf540cb0b3b643d399e59aef4f5ac179'
+const ledger = ledgerModule()
+
+// initialize Onboard
+init({
+  wallets: [ledger],
+  chains: [
+    {
+      id: '0x1',
+      token: 'ETH',
+      label: 'Ethereum',
+      rpcUrl: `https://mainnet.infura.io/v3/${INFURA__KEY}`
+    },
+    {
+      id: '0x3',
+      token: 'tROP',
+      label: 'Ropsten',
+      rpcUrl: `https://ropsten.infura.io/v3/${INFURA__KEY}`
+    },
+    {
+      id: '0x4',
+      token: 'rETH',
+      label: 'Rinkeby',
+      rpcUrl: `https://rinkeby.infura.io/v3/${INFURA__KEY}`
+    },
+    {
+      id: '0x38',
+      token: 'BNB',
+      label: 'Binance',
+      rpcUrl: 'https://bsc-dataseed.binance.org/'
+    },
+    {
+      id: '0x89',
+      token: 'MATIC',
+      label: 'Polygon',
+      rpcUrl: 'https://matic-mainnet.chainstacklabs.com'
+    },
+    {
+      id: '0xfa',
+      token: 'FTM',
+      label: 'Fantom',
+      rpcUrl: 'https://rpc.ftm.tools/'
+    }
+  ],
+  appMetadata: {
+    name: "Web3-Onboard Demo",
+    icon: '<svg>My App Icon</svg>',
+    description: "A demo of Web3-Onboard with Ledger."
+  },
+  accountCenter: {
+    desktop: {
+      position: 'topRight',
+      enabled: true,
+      minimal: false
+    }
+  }
+})
+
+
+
+export default function Home() {
+  const [{ wallet, connecting }, connect, disconnect] = useConnectWallet()
+
+  return (
+    <div className={styles.container}>
+      <Head>
+        <title>Web3-Onboard + Ledger Demo</title>
+        <meta
+          name="description"
+          content="Web3-Onboard Example with Ledger Hardware Wallet"
+        />
+        <link rel="icon" href="/favicon.ico" />
+      </Head>
+
+      <main className={styles.main}>
+        <h1 className={styles.title}>
+          Welcome to a demo of
+          <a href="https://github.com/blocknative/web3-onboard">
+            {' '}
+            Web3-Onboard + Ledger
+          </a>
+          !
+        </h1>
+        <button
+          style={buttonStyles}
+          disabled={connecting}
+          onClick={() => (wallet ? disconnect(wallet) : connect())}
+        >
+          {connecting ? 'connecting' : wallet ? 'disconnect' : 'connect'}
+        </button>
+      </main>
+    </div>
+  )
+}

examples/with-ledger/styles/Home.module.css

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+.container {
+  padding: 0 2rem;
+}
+
+.main {
+  min-height: 100vh;
+  padding: 4rem 0;
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+}
+
+.footer {
+  display: flex;
+  flex: 1;
+  padding: 2rem 0;
+  border-top: 1px solid #eaeaea;
+  justify-content: center;
+  align-items: center;
+}
+
+.footer a {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  flex-grow: 1;
+}
+
+.title a {
+  color: #0070f3;
+  text-decoration: none;
+}
+
+.title a:hover,
+.title a:focus,
+.title a:active {
+  text-decoration: underline;
+}
+
+.title {
+  margin: 0;
+  line-height: 1.15;
+  font-size: 4rem;
+}
+
+.title,
+.description {
+  text-align: center;
+}
+
+.description {
+  margin: 4rem 0;
+  line-height: 1.5;
+  font-size: 1.5rem;
+}
+
+.code {
+  background: #fafafa;
+  border-radius: 5px;
+  padding: 0.75rem;
+  font-size: 1.1rem;
+  font-family: Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono,
+    Bitstream Vera Sans Mono, Courier New, monospace;
+}
+
+.grid {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  flex-wrap: wrap;
+  max-width: 800px;
+}
+
+.card {
+  margin: 1rem;
+  padding: 1.5rem;
+  text-align: left;
+  color: inherit;
+  text-decoration: none;
+  border: 1px solid #eaeaea;
+  border-radius: 10px;
+  transition: color 0.15s ease, border-color 0.15s ease;
+  max-width: 300px;
+}
+
+.card:hover,
+.card:focus,
+.card:active {
+  color: #0070f3;
+  border-color: #0070f3;
+}
+
+.card h2 {
+  margin: 0 0 1rem 0;
+  font-size: 1.5rem;
+}
+
+.card p {
+  margin: 0;
+  font-size: 1.25rem;
+  line-height: 1.5;
+}
+
+.logo {
+  height: 1em;
+  margin-left: 0.5rem;
+}
+
+@media (max-width: 600px) {
+  .grid {
+    width: 100%;
+    flex-direction: column;
+  }
+}
+
+@media (prefers-color-scheme: dark) {
+  .card,
+  .footer {
+    border-color: #222;
+  }
+  .code {
+    background: #111;
+  }
+  .logo img {
+    filter: invert(1);
+  }
+}

examples/with-ledger/styles/globals.css

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+html,
+body {
+  padding: 0;
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen,
+    Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
+}
+
+a {
+  color: inherit;
+  text-decoration: none;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+@media (prefers-color-scheme: dark) {
+  html {
+    color-scheme: dark;
+  }
+  body {
+    color: white;
+    background: black;
+  }
+}