Have you worked on HTTP methods?

HTTP methods define the action to be performed on a resource. The most common ones are GET (retrieve), POST (create), PUT (replace), PATCH (partial update), DELETE (remove), HEAD (retrieve headers), and OPTIONS (discover supported methods). For example, a REST API might use GET /users to list users, POST /users to create a new user, and DELETE /users/123 to remove a user. Understanding when to use each method is essential for designing clean, predictable APIs.