Stripepod: A Blueprint for Full-Stack Payments in Dart

StripePod

When Serverpod hit the scene, it solved a major friction point for Flutter developers: building a true full-stack application using a single language, Dart. Now, with Serverpod 3.0, the opportunity to streamline development is even greater.

Integrating a robust payment system is often the most complex part of a transactional app. You need client-side UI, server-side logic, and secure webhook handling. This usually means stitching together different languages, SDKs, and data models. That ends now.

We are releasing Stripepod, an open-source blueprint designed to remove the guesswork and get your production-ready payment flow live in hours, not days.

Why Full-Stack Dart Matters for Payments

Dart’s unified approach, combined with the power of Serverpod, lets you manage both your mobile/web frontends and your payment backend logic in a single codebase. This is critical for speed and stability.

Stripepod is built as a vertical slice of a production payment flow, focusing on the core principle: Verify, Don't Trust.

The architecture

The blueprint securely delegates responsibility between the application and the server, ensuring compliance and preventing fraud.

• App $\rightarrow$ Server: The client requests a PaymentIntent from the Serverpod backend.

• Server Logic: The server creates the PaymentIntent via the Stripe API and immediately logs a pending transaction record in the secure PostgreSQL database.

• App UI: The client-side, using the retrieved client secret, displays the native Stripe Payment Sheet (for iOS/Android) or the PaymentElement (for Web). This handles card details, Apple Pay, and Google Pay with native, trusted UI.

• Stripe => Server: After the charge, Stripe sends a secure Webhook back to the Serverpod backend.

• Server Security: The server rigorously validates the webhook signature and handles idempotency to prevent duplicate processing. Only after verification does it update the database record to succeeded.

This flow means sensitive data is never stored or processed by your Dart application or server beyond the necessary logic, simplifying your path to security and compliance.

What Stripepod Delivers

Stripepod abstracts away the "plumbing" you typically hate to write, providing immediate value:

• Type Safety: End-to-end type safety, from the backend logic written in Dart to the Flutter frontend.

• Secure Webhooks: Ready-to-go code for verifying Stripe webhook signatures and handling idempotent requests.

• Database Logging: Ensures payment status is persistently logged in Postgres, not just in memory, for reliable auditing and reconciliation.

Stripepod is a foundation for developers ready to leverage Serverpod and Flutter for serious, scalable commerce. It is about focusing your time on the features that define your app, not on payment infrastructure setup.