Webhook

You might say

How do I unlock membership automatically after a successful payment?

A mechanism where the other party proactively notifies an address you configured when something happensAfter an event such as a payment, a platform can attempt to deliver an HTTP request to your configured endpoint. Delivery may be delayed, fail, be retried, duplicate, or arrive out of order. Verify the source, deduplicate events, and read back the business record; polling can provide a reconciliation fallback.

Know first

API

Webhook

The same event: polling versus a webhook

Payment platform · eventevt_1042

Event typepayment.succeeded

Orderorder_71 · paid

Endpointhttps://shop.example.com/webhooks/payments

A successful payment creates an event. The platform then attempts delivery to the configured endpoint; this timing does not guarantee immediate arrival.

What a webhook goes through

Notified when it happens: The platform may attempt delivery after an event; timing can vary, and retries or duplicate events are possible.

Your service processes on receipt: On receipt, verify the source and content, then update the order or access state according to the business flow. Acknowledge receipt as the provider expects and read back the business record to verify.

Guard against duplicates and forgery: Notifications may be delayed, fail, be retried, duplicate, or arrive out of order; provider retries still do not guarantee delivery. Verify signatures, deduplicate, and reconcile critical records.

Quick checkChoose the best answer

The payment platform offers event notifications. Which approach lets it notify your server after a payment?

Have users contact us after paying to unlock manuallyRegister a webhook receiver and wait for the platform to send eventsCheck the payment platform's order status every minute

You can say this to an AI Agent

Integrate a webhook for successful payments: configure the receiving address, verify the signature and order number on notification, then unlock membership. Duplicate notifications for the same order must not unlock twice; acknowledge receipt according to the provider's requirements and verify the final order state.

Learn next

1API→2Idempotency→3Message Queue→

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