HTTP Methods: GET, POST, DELETE andPUT - RESTful Web Services with Spring framework | Spring Boot

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HTTP Methods: RESTful vs Non-RESTful

Designing a clean API requires understanding the difference between traditional web applications and modern RESTful Web Services. In this tutorial, we "simplify" how HTTP methods are used for CRUD operations in Spring Boot.

The Non-RESTful Way

Traditional servlet-based applications often use specific URIs for every action. We take a look at why this can become messy:

• Action-Oriented URIs: Using paths like /registerUserServlet or /deleteUserDetailsServlet.
• Inconsistent Methods: Over-relying on GET for deletions or POST for all updates, leading to non-standard implementations.

The RESTful Standard

In a RESTful architecture, we use a single collection URI (like /users) and let the HTTP Method define the action. We walk through how to correctly implement:

• POST: Creating a new resource with a JSON payload.
• GET: Retrieving details using a path parameter (e.g., /users/123).
• PUT: Updating existing records by targeting the specific resource ID.
• DELETE: Removing resources using the appropriate HTTP verb.

Why It Matters

Using the proper HTTP verbs makes your API more intuitive, predictable, and scalable. It allows different operations to share the same path while remaining distinct based on the request method. Mastering this in Spring Boot is a foundational skill for every professional Java Developer.

📥 Get the Source Code!

The complete Java source code for this comparison tutorial is available! Check out the direct download links in the YouTube video description above.