API Composition Pattern in Microservices

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Say, we have very happily created 6/7 microservices and everything is going well. Now for a new usecase that is introduced in the product, we have to talk to not one but 3 services together to compile a response. So, what is a good way of implementing and supporting this kind of request? A high-level pattern that helps us do it is called API Composition.

In this video, let's in-depth talk about this super simple pattern to query Microservices, see what it is, how to implement it, understand how it not only helps in improving end user experience, and conclude by going through the advantages and disadvantages of adopting it.

Outline:

00:00 Agenda
02:54 Introducing API Composition
04:53 Implementing API Composition using API Gateway
06:44 Sequential vs Parallel Invocation
09:21 Improving end-user experience using API Composition
12:43 Branch or Multi-level API Composition
14:03 Advantages of API Composition and Gateways
18:49 Disadvantages of API Composition and Gateways

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Until next time, stay awesome :)

Yours truly,
Arpit
https://arpitbhayani.me
#AsliEngineering