Stripe Webhooks: Practical Integration Guide

Stripe webhooks power subscription lifecycle, payment updates, and invoice workflows. Reliable handling is critical because billing events affect revenue and account state.

This guide covers the core implementation pattern and common failure modes for Stripe webhook endpoints.

What is Stripe webhook handling

Stripe sends signed event callbacks to your endpoint. Your service verifies the signature, acknowledges receipt, and processes the event asynchronously.

How it works

  1. Create Stripe webhook endpoint.
  2. Subscribe to required events.
  3. Verify Stripe signature using webhook secret.
  4. Use event ID for idempotency.
  5. Queue and process business logic.

Common problems

  • Using parsed JSON instead of raw body for signature validation.
  • Duplicate charges due to missing idempotency checks.
  • Long handlers causing Stripe retries.
  • No replay process for failed invoice events.

How FastHook solves this

FastHook gives Stripe event visibility, failure tracking, and replay controls so you can recover billing events safely without manual scripts.

Code examples

Stripe event handler skeleton (Node.js)

app.post("/webhooks/stripe", express.raw({ type: "application/json" }), (req, res) => {
  const sig = req.headers["stripe-signature"];
  const raw = req.body;

  // const event = stripe.webhooks.constructEvent(raw, sig, process.env.STRIPE_WEBHOOK_SECRET);
  // if event.id already processed -> return 200

  return res.status(200).send("ok");
});

Stripe CLI test event

stripe trigger payment_intent.succeeded

Stripe payload example

{
  "id": "evt_1QxYz",
  "type": "invoice.paid",
  "data": {
    "object": {
      "id": "in_123",
      "customer": "cus_123"
    }
  }
}

Try FastHook

Route Stripe events through FastHook to inspect, retry, and replay billing-critical webhooks.