Spring Boot Microservices Eureka Server Tutorial | Service Discovery Guide

In this tutorial, we’ll create two Spring Boot microservices, register them with an Eureka server, and demonstrate service communication using Feign.

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Introduction to Eureka Server

Eureka Server is a service registry where microservices register and discover other services. This dynamic discovery mechanism helps manage communication in a distributed system. It eliminates the need for hardcoding service addresses, making the system more scalable and resilient.

How Microservices Use Eureka for Discovery

When a microservice registers with Eureka, it provides the server with details like its hostname, IP address, and port. Other microservices can then query the Eureka server to get this information and communicate dynamically.

For example:

• Service Registration: When a microservice starts, it registers itself with Eureka by sending a POST request with its metadata (such as hostname, IP address, and port) to the Eureka server.
• Service Discovery: Another microservice, instead of hardcoding the service address, queries Eureka to get the address and port of the service. This is especially useful when services are deployed across multiple instances and dynamically assigned…