Stripe Payment Integration

Stripe integrations built to handle the edge cases that actually cause revenue problems — failed payments, webhook reliability, and subscription billing done right.

API & Integrations

Stripe Payment Integration

req/s, zero deadlocks
15Kreq/s, zero deadlocks
double-charges in production
0double-charges in production
production systems shipped
10+production systems shipped
years building for clients
7+years building for clients
Sound familiar

Signs you need this now.

A basic Stripe integration handles the happy path fine: a customer pays, the charge succeeds. The actual complexity, and the actual revenue risk, is in the edge cases: webhook delivery failures, failed payment retries, proration on plan changes, and idempotency under concurrent requests. Most integration problems live in that 20%.

01

Webhooks are unreliable or missing events

Stripe events sometimes do not seem to arrive, or arrive out of order, and there is no clear system for handling that. Revenue-critical logic (granting access, updating subscription status) depends on webhooks working correctly.

02

Failed payments are quietly costing recurring revenue

There is no dunning process, so a card that fails to charge simply cancels the subscription instead of retrying and notifying the customer. That is revenue lost to a fixable process gap, not to genuine churn.

03

Worried about double-charging or duplicate webhook processing

Without idempotency handling, a retried webhook or a network hiccup on the client side could theoretically cause a customer to be charged twice. That risk needs to be engineered away, not just hoped against.

Scope

What you get.

Reliable webhook handling with signature verification

Webhooks processed idempotently with proper signature verification, so retried or out-of-order events do not cause incorrect state.

A real dunning process for failed payments

Automated retry logic and customer notification when a payment fails, instead of an immediate silent cancellation.

Subscription billing that handles proration correctly

Plan upgrades, downgrades, and mid-cycle changes calculated and charged correctly, not approximated.

Idempotent charge handling

Payment requests built to be safely retryable without any risk of a duplicate charge.

Usage-based and metered billing where needed

Stripe's metered billing set up correctly for products that charge based on usage rather than a flat subscription.

How it works

Four steps, no mystery.

01

Quick scoping call

A short call (or async over WhatsApp) to understand what you're working with and what "done" actually looks like for you.

02

Fixed scope, no surprises

A clear written plan of what's included and how long it takes, before any work starts.

03

The actual work

Progress you can see, not a black box. You get updates as milestones land, not just a status report at the end.

04

Handover

Everything documented and handed over cleanly, with a walkthrough so your team isn't stuck waiting on me for routine changes.

Related

You might also need.

Questions

Frequently asked.

Yes — this often starts with an audit of the webhook handling and billing logic specifically, since that is where most Stripe integration bugs actually live.

Start here

Tell me what you're dealing with.

Send a message and get a real reply within 24 hours, not an automated sequence.

Prefer email? info@hasnain.io

Or WhatsApp directly, same link as above