Definition
Learn to define asynchronous microservices by exploring their key characteristics—how they handle requests without waiting for responses or avoid inter-service communication during processing. Understand practical examples in e-commerce settings that illustrate asynchronous communication patterns, enabling you to grasp the role of decoupling and resilience in microservice architectures.
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Asynchronous microservices are different from synchronous microservices, which are covered in depth in Chapter 9.
A microservice is synchronous if it makes a request to other microservices while processing requests and waits for the result.
The logic to handle a request in the microservice might therefore not depend on the result of a request to a different microservice.
So, a definition of asynchronous microservices would be:
A microservice is asynchronous if:
(a) It does not make a request to other microservices while processing requests. OR
(b) It makes ...