It is important to understand idempotency if you are going to be building APIs that are open to the public. Idempotency is especially useful when you have operations that must only occur once like making in a payment. In this video I give an overview of what idempotency is, why we use it and how to implement it.

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⏳ CHAPTERS
00:00 - Introduction
01:05 - Idempotency Definition
01:27 - Idempotency in HTTP methods
03:37 - Making POST and PATCH Idempotent
04:44 - Globally Unique Keys
05:05 - Idempotency Storage
05:51 - Idempotency Workflow
06:11 - How long to store Idempotency Keys
06:47 - Idempotency Validation
07:21 - Idempotency in .Net Core
07:40 - Support the Channel

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I’m Alex, a Software Developer and YouTube working in the UK. I make videos about software development to help developers with the skills they need to be senior developers. As well as this YouTube Channel, I also write articles on my website (https://alexhyett.com) as well as write a regular newsletter that contains some thoughts to help aspiring developers.

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