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complete lnd grpc setup #2

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complete lnd grpc setup #2

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28e4ac9
complete lnd grpc setup
busayo-OD Apr 28, 2025
82f9fe4
Merge remote-tracking branch 'upstream/main'
busayo-OD Apr 29, 2025
6611f8b
lightning payment
busayo-OD May 16, 2025
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3 changes: 3 additions & 0 deletions .gitignore
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.env
.vscode
node_modules
47 changes: 37 additions & 10 deletions client/app.js
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let currentInvoice = null;

document.getElementById('pay-button').onclick = async () => {
const amount = document.getElementById('amount').value;
if (!amount) return alert("Enter an amount!");
const amount = document.getElementById('amount').value;
if (!amount) return alert("Enter an amount!");

const res = await fetch('http://localhost:3000/invoices/create', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ amount })
});

const invoice = await res.json();
currentInvoice = invoice;

const qrURL = `https://api.qrserver.com/v1/create-qr-code/?data=lightning:${invoice.payment_request}`;
document.getElementById('qrcode').innerHTML = `<img src="${qrURL}" alt="Invoice QR Code">`;

// Show payment section
document.querySelector('.payment-section').style.display = 'block';
document.getElementById('payment-status').textContent = '';
};

document.getElementById('pay-invoice-button').onclick = async () => {
if (!currentInvoice) return alert("No invoice to pay.");

const res = await fetch('http://localhost:3000/create-invoice', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ amount })
});
const res = await fetch('http://localhost:3000/invoices/pay', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ payment_request: currentInvoice.payment_request })
});

const invoice = await res.json();
const qrURL = `https://api.qrserver.com/v1/create-qr-code/?data=lightning:${invoice.payment_request}`;
const result = await res.json();

document.getElementById('qrcode').innerHTML = `<img src="${qrURL}" alt="Invoice QR Code">`;
if (res.ok) {
document.getElementById('payment-status').textContent =
`Payment successful: ${result.amount} sats`;
} else {
document.getElementById('payment-status').textContent =
`Payment failed: ${result.details || result.error}`;
}
};
22 changes: 16 additions & 6 deletions client/index.html
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<head>
<meta charset="UTF-8">
<title>Lightning Payment App</title>
<link rel="stylesheet" href="styles.css">
</head>

<body>
<h1>Pay with Lightning!</h1>
<input type="number" id="amount" placeholder="Amount in sats" />
<button id="pay-button">Generate Invoice</button>
<div id="qrcode"></div>
<div class="container">
<h1>Pay with Lightning!</h1>
<input type="number" id="amount" placeholder="Amount in sats" />
<button id="pay-button">Generate Invoice</button>

<script src="app.js"></script>
<div id="qrcode"></div>

<!-- Payment section -->
<div class="payment-section" style="display: none;">
<h3>Send payment:</h3>
<button id="pay-invoice-button">Pay</button>
<div id="payment-status"></div>
</div>

<script src="app.js"></script>
</body>

</html>
</html>
15 changes: 15 additions & 0 deletions client/styles.css
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body {
font-family: Arial, sans-serif;
background-color: #f4f7fa;
margin: 0;
padding: 0;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100vh;
}

h1 {
color: #333;
}
15 changes: 0 additions & 15 deletions package.json
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37 changes: 20 additions & 17 deletions server/index.js
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const express = require('express');
const { createInvoice, subscribeToInvoices } = require('./invoice');
const {connectToMongoDB} = require('./src/database/db');
const cors = require('cors');
require('dotenv').config();
const bodyParser = require('body-parser');
const invoiceRouter = require('./src/routes/invoice.route');
const { initSocket } = require('./src/services/socket');
const { subscribeToInvoices } = require('./src/controllers/invoice.controller');
require('dotenv').config({ path: '../.env' });
require('./src/jobs/expireInvoices');

const app = express();
const PORT = 3000;

// Connect to MongoDB
connectToMongoDB();

app.use(cors());
app.use(express.json());
app.use(bodyParser.urlencoded({ extended: false }));

const PORT = 3000;
app.use('/invoices', invoiceRouter);

// Create Invoice endpoint
app.post('/create-invoice', async (req, res) => {
const { amount } = req.body;
try {
const invoice = await createInvoice(amount);
res.json(invoice);
} catch (err) {
console.error(err);
res.status(500).send('Error creating invoice');
}
});

app.listen(PORT, () => {
const server = app.listen(PORT, () => {
console.log(`Server listening at http://localhost:${PORT}`);
subscribeToInvoices(); // start payment listener
});


initSocket(server);

subscribeToInvoices();
30 changes: 0 additions & 30 deletions server/invoice.js
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