Stop Using Random Card Numbers in Your Checkout Tests (Use These Instead)
When you build a checkout form, you need card numbers to test it. The usual shortcut is to type 4111 1111 1111 1111 or make up some digits. That wor…
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How to Fix "Stripe Webhook Signature Verification Failed" in Laravel
If your Laravel application suddenly throws "Stripe webhook signature verification failed" — the Stripe PHP SDK's SignatureVerificationException , u…
My Stripe idempotency key was correct. It just stopped working after 24 hours.
I added a reward feature that pays out through Stripe's customer balance, and I did what every payments guide tells you to do: I passed an idempoten…
We sold a plan that didn't work
We launched a 4.90 EUR/month plan. The annual option would have charged 58.80 EUR every month, the plan granted no entitlements, and the worker igno…
Stripe webhooks in Go: the complete idempotent handler, line by line
Every Stripe tutorial in Go shows the same forty lines: read the body, call ConstructEvent , switch on the type, update the database. Those forty li…
Reimporting Stripe's new OpenAPI spec into Mockoon left 559 routes on the old API
Disclosure: I work on Mockzilla, which competes with Mockoon. Everything below was run on one laptop, and there is a link to the longer comparison a…
Your Webhook Endpoint is a Tiny Distributed System
If you want the Rails implementation version of this, Webhooks in Rails goes deeper on verification, durable receipt, idempotency, retries, jobs, te…
Your AI builder shipped the Stripe code in an afternoon. Verifying it took a week.
A friend shipped a booking app last month. Lovable built the whole thing, Stripe Checkout included, in something like an afternoon. It looked finish…
Stripe Shared Payment Tokens: five wire shapes I only found by shipping
Five response shapes from Stripe's Shared Payment Tokens preview API that I didn't find documented, captured from real test-mode responses. Stripe's…
Why I built a full PayPal checkout on Cloudflare Workers instead of using Stripe
When I migrated a 4-year-old e-commerce store to Webround, the client had one non-negotiable requirement: PayPal had to work. Their customers were u…
I type-check AI-generated SDK code against the real package. Claude refused a third of my Stripe tasks.
I build a small tool called SDKProof. It measures whether AI coding agents write a library's current API or an older one they remember. A model solv…
Payment Integration Process Using AI with React JS - DEV.to Guide 2026
The short answer: Integrating payments in a React JS app using AI means combining a payment gateway SDK (Stripe, PayPal, Razorpay) with AI-powered f…
Designing Idempotent Stripe Webhook Delivery for Generated Files
A successful payment is not the same thing as a successful order. For a SaaS product that generates a personalized file after checkout, fulfillment…
Next.js Stripe Billing Integration for SaaS (Step-by-Step Guide)
Creating a B2B SaaS application involves a number of challenges. One of the challenges facing entrepreneurs and businesses is the time required to d…
Stripe webhooks can work and your app access can still be wrong
Most Stripe billing bugs get described as webhook bugs. Did the event arrive? Did the signature verify? Did the handler return 200 ? Is the handler…
Stripe-connect-reckon – a read-only monitor for Stripe Connect balance risk
I worked on a marketplace where a connected account went negative, Stripe suspended its payouts, and refunds silently queued as pending — no error,…
AI usage billing gets complicated fast — here's what breaks first
At first, AI billing looks simple. A user makes a request. You charge them. Done… right? Not really. Once your AI product starts getting real traffi…