Billing webhook launch readiness checklist
Before sending paid checkout traffic to production, verify that the webhook route has evidence for the failure modes that usually break billing launches.
Open the free scorecardLaunch gates
Verify exact bytes before parsing JSON.
Process one side effect and skip provider retries.
Map paid, failed, renewed, cancelled, and unknown events to access decisions.
Confirm a real checkout reaches the deployed webhook and creates the expected record.
Keep staging and production webhook secrets independent from API keys.
Observe rejected signatures, unknown events, duplicate deliveries, and failed side effects.
Score interpretation
Treat the score as a release conversation, not a guarantee. Launch paid checkout only after the deployed route has a signature fixture test, duplicate replay test, entitlement decision matrix, environment-specific secrets, and checkout-to-webhook smoke test.
FAQ
What should be checked before launching paid checkout webhooks?
At minimum, verify raw-body signatures, duplicate retry idempotency, entitlement decisions, environment-specific secrets, checkout-to-webhook smoke tests, review artifacts, and monitoring for failures or unknown events.
Can a checklist replace a live checkout test?
No. A checklist reduces blind spots, but production launch still needs a real checkout-to-webhook smoke test with the deployed endpoint and live environment configuration.
Use the free sample before wiring production checkout
Download a public sample pack with fake Lemon Squeezy fixtures, signature tests, contract checks, duplicate replay tests, and CI skeletons. The Pro Kit preview shows the full paid package structure without exposing the private archive.