When building microservices with Spring Boot, you’ll have to decide how the services will communicate with one another. The basic choices in terms of protocols are Messaging and REST. In this article we’ll discuss tools based on REST, which is a comm...

freeCodeCamp is a nonprofit organization offering free online coding courses and programming tutorials, covering topics such as web development, data science, and machine learning. Learners can gain practical coding skills, build real-world projects, and earn certifications to advance their careers in tech.

freeCodeCamp

OpenFeign and WebClient are two popular REST client options for Spring Boot applications. OpenFeign offers a declarative approach using annotated interfaces, integrates seamlessly with Spring Cloud components, and works well for synchronous microservice communication. WebClient provides a reactive, non-blocking HTTP client with fluent API design, better suited for high-throughput applications and reactive programming models. The choice depends on your architecture: use OpenFeign for traditional Spring Cloud microservices prioritizing simplicity, and WebClient for reactive applications requiring high performance and concurrent request handling.

OpenFeign vs WebClient: How to Choose a REST Client for Your Spring Boot Project