Synchronous HTTP/REST communication and asynchronous messaging

In this section, we’re going to learn about synchronous HTTP/REST communication and asynchronous messaging, two fundamental communication patterns that are used in microservices architectures.

Synchronous HTTP/REST communication

Synchronous communication in microservices often involves HTTP/REST, where one microservice makes a request to another microservice to fulfill a specific operation.

Here are the key concepts for using this form of communication:

• Request-response model: Synchronous communication follows a request-response model where a client sends a request to a server and waits for a response. In RESTful APIs, this communication is typically done over HTTP/HTTPS protocols.
• HTTP methods: HTTP methods (GET, POST, PUT, DELETE, and so on) are used to perform operations on resources. They are used to define the operations that can be performed on resources within the microservices architecture...