webhook-implementation
Implements or fixes Stripe webhook handlers -- signature verification, event routing, idempotency, and retry-safe processing. Use when the user wants to "add a webhook handler", "handle stripe events", "fix webhook", or process specific events. For delivery health audit, see webhook-reliability.
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- appeeky/stripe-skills
- 最近来源活动
- 2026年7月19日 10:10
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- webhook-implementation
- description
- Implements or fixes Stripe webhook handlers -- signature verification, event routing, idempotency, and retry-safe processing. Use when the user wants to "add a webhook handler", "handle stripe events", "fix webhook", or process specific events. For delivery health audit, see webhook-reliability.
- metadata
- {"version":"1.0.0"}
# Webhook Implementation
Builds robust Stripe webhook handlers. Match the project's stack or ask users (Next.js route, Express, Supabase edge function).
## Must-haves
1. **Raw body** for signature verification (no JSON pre-parse)
2. `stripe.webhooks.constructEvent(body, sig, secret)`
3. **Idempotency** -- dedupe by `event.id` (store processed IDs)
4. Return `200` fast; heavy work async
5. Handle only subscribed events; ignore rest gracefully
## Core events (subscription SaaS)
| Event | Handler action |
|-------|----------------|
| `checkout.session.completed` | Provision access, save customer/sub IDs |
| `customer.subscription.updated` | Sync plan + status |
| `customer.subscription.deleted` | Revoke access |
| `invoice.payment_failed` | Trigger dunning email/banner |
| `invoice.paid` | Confirm renewal |
## Pattern (pseudocode)
```
event = constructEvent(rawBody, sig, secret)
if alreadyProcessed(event.id): return 200
switch event.type: ...handle...
markProcessed(event.id)
return 200
```
## Verify
Use Stripe CLI `stripe listen` / `stripe trigger`, or check `webhook-reliability` after deploy.
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