Building RESTful APIs with Spring Boot

This chapter focuses on building RESTful APIs using Spring Boot. You will learn how to create basic REST controllers, return JSON responses, handle path variables and query parameters, and implement CRUD operations for your application.

Lessons and practices

Lesson 1: Introduction to REST and Creating Your First REST Endpoint

Create your First REST Controller

Update REST Endpoint to Return JSON Object

Add a New REST Endpoint

Lesson 2: Returning JSON Responses

Returning JSON from Spring Boot

Refactor Recipe Model to Use Java Records

Customize JSON Serialization for Recipe POJO

Lesson 3: Handling Path Variables and Query Parameters

Path Variables and Query Parameters

Refactor to Use Optional in @RequestParam

Fix Path Variable in Recipe Controller

Endpoint for Fetching Recipe by Category and ID

Handling Query Parameters in Spring Boot

Lesson 4: Creating CRUD Endpoints

CRUD Endpoints in Spring Boot

Setting Common URL Prefix in the RecipeController

Fixing Bug in RecipeController's POST and PUT Methods

Implement POST /recipes Endpoint

Implement PUT /recipes/{id} Endpoint

Implement DELETE /recipes/{id} Endpoint

Lesson 5: Returning Status Codes with ResponseEntity

Exploring CRUD with ResponseEntity

Add ResponseEntity to POST /recipes Endpoint

Add ResponseEntity to PUT /recipes Endpoint

Add ResponseEntity to DELETE /recipes Endpoint

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