Made it so it is possible to buy a package

src/app/api/success/route.ts

@@ -0,0 +1,35 @@
+import axios from "axios";
+import moment from "moment";
+
+export async function POST(request: Request) {
+	const {id, product} = (await request.json()) as {id: string; product: string};
+
+	if (!id || !product) {
+		return Response.json({error: "Product and/or id missing from the body."}, {status: 400});
+	}
+
+	try {
+		const idChecker = await axios.get(`https://api.stripe.com/v1/checkout/sessions/${id}`, {
+			auth: {username: process.env.STRIPE_SECRET || "", password: ""},
+		});
+
+		if (idChecker.data["payment_status"] !== "paid") {
+			return Response.json({error: "The payment has not yet finished!"}, {status: 401});
+		}
+
+		const productChecker = await axios.get(`https://api.stripe.com/v1/products/${product}`, {
+			auth: {username: process.env.STRIPE_SECRET || "", password: ""},
+		});
+
+		const email = idChecker.data["customer_details"]["email"];
+
+		const days = productChecker.data["metadata"]["expiry_days"];
+		const expiryDate = moment(new Date()).add(days, "days").toDate();
+
+		await axios.post("https://encoach.com/api/stripe", {expiryDate, email, key: process.env.STRIPE_SECRET, checkout: id});
+
+		return Response.json({error: null, ok: true});
+	} catch (e) {
+		return Response.json({error: "Something went wrong or one of the values is invalid!"}, {status: 500});
+	}
+}