Master Microservices with Spring Boot and Spring Cloud - Step 18 – Using Feign REST Client for Service Invocation – V2

The video tutorial explains the challenges of using Rest Template in a microservices architecture, where repetitive code is needed for API calls. It introduces Spring Cloud OpenFeign as a solution to simplify these calls by reducing code complexity. The tutorial covers adding the necessary dependencies, creating a proxy interface, and configuring the Feign client with the appropriate service name and URL. It demonstrates how to implement Feign in the controller to replace Rest Template calls, highlighting the ease and efficiency of using Feign for API communication in microservices.

What is the significance of the URL 'localhost:8000' in the context of the currency exchange service?

How does using Feign simplify the process of making API calls between microservices?

In what way does the implementation of Feign contribute to load balancing in microservices?