Module 5 of 6Lesson 2 of 3~18 min
Webhooks and idempotency, with no duplicates and no lost events
An event received twice, or never, can throw off an invoice or an inventory count. This lesson explains how webhooks work and why idempotency protects repeated writes. You can then specify reliable handling, from verifying the sender to catching up on missed events.
Lesson objective
By the end of this lesson, you will be able to specify how webhooks are received (signature check, fast response, duplicates, ordering, catch-up) and how writes are safely retried thanks to idempotency, so that no event is lost or handled twice.
Topics covered
- webhooks
- idempotency
- events
- integration reliability
In the glossary
Where it fits
An integration that lasts
How does the integration withstand large volumes, limits, outages, duplicates and new versions?
Lessons in this module
- Pagination and rate limits
- Webhooks and idempotency, with no duplicates and no lost events (this lesson)
- Sandbox, production, versions and deprecations
What you will learn in this module
This lesson is part of the course Design and test an API integration as a PM
- Specify pagination, rate-limit handling, webhooks and idempotency for an integration that withstands volumes, outages and duplicates.
- Plan environments (sandbox, production), versions, breaking changes and deprecations in the spec and the test plan.
Related courses
- Product ManagementAdvancedRegular practice: you already use the tools or work on this topic.
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Explain how a web product works, from browser to server
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- Tech for PMsJuniorSome basics are useful: introductory knowledge of the topic.
Model your product’s data and query it with SQL
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