Synchronous Microservices

We implemented our first microservice in the previous chapter, but to demonstrate microservice communication, we need to run at least one more service. To understand the beauty of JavaScript in microservice development, we will use a different Node.js framework called NestJS for the current chapter.

As we discussed earlier, microservice architecture consists of multiple services, and one of the complexities that this approach brings with it is communication. We already know that microservices, while offering advantages in scalability and development, introduce a layer of complexity in communication compared to monolithic applications. Unlike monolithic applications, where everything runs together, microservices communicate over a network. This introduces challenges in latency (the time it takes for a request to be processed and a response to be received), reliability (since network issues can disrupt communication), and security (since you need to secure...