Diving into Microservices Internals

Microservices aren’t just about breaking down a large application into smaller, more manageable ones. They also introduce challenges, one of which is communication between services. Monolithic applications, which we discussed in the previous chapter, make communication between elements relatively straightforward. However, in microservice architecture, we have physical isolation between services. Even though we want microservices to be independent, as well as easy to reuse, maintain, and grow, getting them to talk to each other effectively becomes a major challenge.

Effective microservice communication is crucial for the overall success of architecture. It enables services to exchange data, coordinate actions, and trigger events. If microservices can’t communicate effectively, they become like isolated islands, stopping the application from working properly and keeping it running slowly. Well-designed communication patterns ensure...