Inter-Service Communication Basics

Microservices are small, independent services. For them to work together, they need to communicate! Imagine an Order Service needing product details from a Product Service.

This lesson explores how services talk to each other. We'll focus on synchronous communication, where one service waits for a reply from another.

Communication between services can be:

• Synchronous: The calling service sends a request and waits for a response before continuing its own task. Think of a phone call.
• Asynchronous: The calling service sends a request and doesn't wait for an immediate response. It continues its work. Think of sending an email.

Today, we'll dive into synchronous communication, often done using REST APIs.