server.js

import express from 'express';
import cors from 'cors';
import Stripe from 'stripe';
import dotenv from 'dotenv';

dotenv.config();

const app = express();
const stripe = new Stripe(process.env.STRIPE_SECRET_KEY);

app.use(cors());
app.use(express.json());

app.post('/create-payment-intent', async (req, res) => {
    try {
        const paymentIntent = await stripe.paymentIntents.create({
            amount: 999, // €9.99
            currency: 'eur',
            automatic_payment_methods: {
                enabled: true,
            },
        });

        res.send({
            clientSecret: paymentIntent.client_secret,
        });
    } catch (e) {
        res.status(400).send({
            error: {
                message: e.message,
            }
        });
    }
});

const PORT = process.env.PORT || 4242;
app.listen(PORT, () => console.log(`Node server listening on port ${PORT}!`));