Build Your First Spring Boot API — Full CRUD Step-by-Step
Build a Spring Boot REST API with full CRUD operations from scratch! Step-by-step Java backend tutorial for 2025.
🚀 Build a Spring Boot REST API with full CRUD operations from scratch! Step-by-step Java backend tutorial for 2025. 💻 Learn to create, read, update, and delete data using Spring Boot, Spring Data JPA, and test with Postman.
🛠️ In this comprehensive tutorial, you will learn how to:
⚙️ Set up a Spring Boot project for REST API development.
🧱 Create JPA Entities to model your data (Product entity).
🗄️ Build Spring Data JPA Repositories for database interactions.
🧠 Implement a Service layer to handle your business logic.
🕹️ Develop REST Controllers with Spring MVC, mapping all essential CRUD endpoints:
➕ POST: Create new products.
🔍 GET: Fetch all products, a single product by ID, products by category, by price, and search by name.
🔄 PUT: Update existing products.
❌ DELETE: Remove products.
🛣️ Understand and use Path Variables and Request Parameters.
🧪 Effectively test your REST API endpoints using Postman.
🔄 See the complete flow from HTTP request to database operation and back.
🚧 Identify common pitfalls like missing input validation (we'll tackle this in the next video!).
💻 Technologies Covered:
Java ☕
Spring Boot (Spring Web, Spring Data JPA) 🌱
Hibernate 🐻
MySQL (or your chosen relational database) 🐬
Postman 📮
Maven 🛠️
🧑💻 Who is this tutorial for?
Java developers eager to learn Spring Boot for backend development.
Anyone wanting to build robust RESTful APIs.
Students and professionals looking to enhance their web development skills. 🎓
Beginners looking for a clear, step-by-step guide to CRUD operations. 🚶♂️➡️🚶♀️
💡 What's Next?
At the end of this video, we demonstrate creating a product with invalid data (like a negative price). This highlights the importance of server-side validation!
➡️ In our next video, we will dive deep into adding robust input validation to this Spring Boot API to make it production-ready. Make sure to subscribe so you don't miss it! 🔔
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Contents:
00:00 Intro
00:42 Creating Spring Boot project
03:03 Project Structure
05:52 Start the project for the first time
06:40 Configuring the project for the database connection
09:52 Create the very first REST Endpoint
11:16 Create necessary packages
11:51 Create Entity
15:38 Create Product Repository
17:35 Defining Query Methods
21:55 Creating Service
27:38 Implement Product Controller
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