feat: billing

packages/ee/server-only/stripe/create-checkout-session.ts

@@ -0,0 +1,44 @@
+import type Stripe from 'stripe';
+
+import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
+import { stripe } from '@documenso/lib/server-only/stripe';
+
+export type CreateCheckoutSessionOptions = {
+  customerId: string;
+  priceId: string;
+  returnUrl: string;
+  subscriptionMetadata?: Stripe.Metadata;
+};
+
+// Todo: orgs validate priceId to ensure it's only ones we allow
+
+export const createCheckoutSession = async ({
+  customerId,
+  priceId,
+  returnUrl,
+  subscriptionMetadata,
+}: CreateCheckoutSessionOptions) => {
+  const session = await stripe.checkout.sessions.create({
+    customer: customerId,
+    mode: 'subscription',
+    line_items: [
+      {
+        price: priceId,
+        quantity: 1,
+      },
+    ],
+    success_url: `${returnUrl}?success=true`,
+    cancel_url: `${returnUrl}?canceled=true`,
+    subscription_data: {
+      metadata: subscriptionMetadata,
+    },
+  });
+
+  if (!session.url) {
+    throw new AppError(AppErrorCode.UNKNOWN_ERROR, {
+      message: 'Failed to create checkout session',
+    });
+  }
+
+  return session.url;
+};