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Backend Engineering > Work that outlives the requestReceiving a webhook you did not initiate
Phase 05Work that outlives the request271 of 434

Receiving a webhook you did not initiate

Verify the signature, respond fast, do the work later, and survive the same event arriving three times out of order.

Build45 minAI pair

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This one runs on your machine rather than in the browser workbench. Work to the outcomes below, then come back and mark it complete.

You should now be able to

  • Verify an HMAC signature against a raw body
  • Acknowledge within the provider timeout
  • Handle duplicate and out-of-order deliveries
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