#65 🌐 Web Service Layer | Part 6 — 🌱 Spring Web | @PostMapping & @RequestBody

#65 🌐 Web Service Layer | Part 6 — 🌱 Spring Web | @PostMapping & @RequestBody Description: In this video, we continue our exploration of the Web Service Layer with Spring Web and Spring Boot. After seeing in the previous video how to use @GetMapping and @RequestParam to retrieve information from HTTP request parameters, we will now discover how to send data to a REST API with an HTTP POST request. We will explore the role of @PostMapping and @RequestBody, and understand how Spring Boot automatically transforms the JSON received in the HTTP body into a Java object. This video covers: • Understanding the role of @PostMapping • Understanding how @RequestBody works • Binding an HTTP JSON object to a Java object • Sending a Product object in the body of a POST request • Creating an endpoint to save a product with save() • Creating an endpoint to save multiple products with saveAll() • Understanding the difference between save() and saveAll() • Using consumes and produces • Testing HTTP POST requests with a JSON body • Understanding the relationship between HTTP POST, JSON, @RequestBody, and the Controller Example Product save(): { "name": "Smartwatch", "price": 8500.0, "category": "Electronics", "available": true, "stock": 10 } Example Product saveAll(): [ { "name": "MacBook Pro", "price": 15000.0, "category": "Computer", "available": true, "stock": 25 }, { "name": "Asus ROG", "price": 12000.0, "category": "Computer", "available": true, "stock": 15 }, { "name": "Xiaomi Redmi Note 14", "price": 3200.0, "category": "Smartphone", "available": true, "stock": 60 } GitHub source code: https://github.com/3ia-community/Form... Video objectives: ✔ Understand how @PostMapping works ✔ Understand the role of @RequestBody ✔ Bind JSON to Java objects ✔ Send data to the body of a request POST ✔ Create a save() endpoint for a product ✔ Create a saveAll() endpoint for multiple products ✔ Understand consumes and produces ✔ Test HTTP POST requests with JSON ✔ Understand the relationship between HTTP POST, JSON, and the Controller ✔ Put @PostMapping into practice with Spring Boot Contact me: 📧 mohammedezzaim00@gmail.com 💼   / mohammed-ezzaim   🐱 https://github.com/mohammed-ezzaim Keywords & Hashtags: #SpringWeb #SpringWebMVC #SpringBoot #PostMapping #RequestBody #GetMapping #RequestParam #PathVariable #RESTAPI #REST #Java #BackendDevelopment #JavaDeveloper #SpringBootTutorial #API #HTTP #HTTPPOST #WebService #JSON #MySQL #JPA #QueryParameters #3IACommunity