Implemented Stripe integration to handle one-time payments, including frontend checkout and backend webhook handling to confirm successful payments. Payment data is processed securely and included basic error handling for failed transactions.
Summary
SaaS companies typically start their process with a waitlist to gauge attention and secure funding for development. This is either done through a simple form or integrating a payment system directly into the site.
The website's overall flow is very simple, and the focus is on the Stripe integration. A user will land on the landing page, read through it, enter their details and decide to buy it. We then ensure we successfully handle both successful and failed payments.
Troubleshooting
Deprecated stripe.redirectToCheckout
The first issue I encountered was Stripe's API update, which deprecated the stripe.redirectToCheckout method in the 2025-09-30.clover release. The alternative is to use a standard redirect, such as window.location.href= ... .
App Router in NextJS
NextJS has two main ways of structuring your application: AppRouter and PagesRouter. Most resources reference PagesRouter, which meant we couldn't use Stripe's quickstart.
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Posted Feb 20, 2026
Implemented Stripe integration for one-time payments.