import express from "express"; import Stripe from "stripe"; import AWS from "aws-sdk"; const app = express(); const stripe = new Stripe(process.env.STRIPE_SECRET_KEY); const s3 = new AWS.S3({ region: "us-east-1" }); app.use(express.json()); // 1) Create checkout session app.post("/create-checkout-session", async (req, res) => { const session = await stripe.checkout.sessions.create({ mode: "payment", line_items: [{ price: process.env.STRIPE_PRICE_ID, quantity: 1 }], success_url: `${process.env.SITE_URL}/thanks?session_id={CHECKOUT_SESSION_ID}`, cancel_url: `${process.env.SITE_URL}/`, }); res.json({ url: session.url }); }); // 2) After success, verify payment and return expiring download URL app.get("/download", async (req, res) => { const { session_id } = req.query; const session = await stripe.checkout.sessions.retrieve(session_id); if (session.payment_status !== "paid") return res.status(403).send("Not paid"); const url = s3.getSignedUrl("getObject", { Bucket: process.env.S3_BUCKET, Key: "music/song_320_tagged.mp3", Expires: 60 * 10 // 10 minutes }); res.json({ url }); }); app.listen(3000, () => console.log("running on :3000"));

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