Chapter 18: Spring Boot POST REST API — @PostMapping Annotation | Spring Boot Course

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Introduction

In this chapter, we will cover the @PostMapping and @RequestBody annotations in Spring Boot.

The @PostMapping annotation is used to handle HTTP POST requests, while the @RequestBody annotation is used to bind the request body to a method parameter.

We will create endpoints to create resources using these annotations, focusing on the Employee entity as our primary example.

Understanding @PostMapping and @RequestBody Annotations

What is @PostMapping?

The @PostMapping annotation in Spring Boot is used to create a mapping between HTTP POST requests and handler methods in a controller. It is a specialized version of the @RequestMapping annotation designed specifically for handling POST requests.

How @PostMapping Works

When a client sends an HTTP POST request to a specified URL, the @PostMapping annotation maps this request to a specific handler method in the controller. The method processes the…