Docs
Billing
How checkout, webhooks, and entitlements fit together.
1
Polar is the only checkout, portal, and webhook provider.
2
Polar product IDs live in the POLAR_PRODUCT_IDS map keyed by offer ID.
3
The Polar webhook normalizes purchases and subscriptions into the shared data layer.
4
Entitlements are resolved from paid purchases and active subscriptions.
5
Do not hard-code secrets, product IDs, checkout URLs, or webhook secrets.