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HTTP Methods - Overview

HTTP Methods - Overview

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Gourab Das
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2 min read

Table of contents

1. Introduction to HTTP Methods

  • HTTP (Hypertext Transfer Protocol) defines different request methods to interact with a server.

  • Common HTTP methods: GET, POST, PUT, PATCH, and DELETE.

  • Each method serves a specific purpose in data retrieval, modification, or deletion.

2. GET Method

  • Used to request data from a server.

  • When a user enters a URL in a browser, it sends a GET request to fetch the required data.

  • Example: youtube.com/search fetches video results based on the search query.

  • The server processes the request, retrieves the data from the database, and returns it to the client.

  • GET requests do not modify the server’s data.

  • Browser's default request method when accessing web pages.

  • Can be observed using browser developer tools under the “Network” tab.

3. POST Method

  • Used to send data to the server for storage or processing.

  • Commonly used for forms such as sign-up, login, or feedback submission.

  • Unlike GET, POST requests make changes to the server-side database.

  • Example: When signing up on a social media site, user credentials (username, email, password) are sent to the server using a POST request.

  • Data sent via POST is included in the request body rather than the URL, making it more secure than GET.

4. PUT Method

  • Used to update or replace existing data on the server.

  • Requires sending the full updated data payload.

  • Example: Updating a user profile with new details.

  • If the resource does not exist, PUT may create a new one.

5. PATCH Method

  • Similar to PUT but used for partial updates.

  • Instead of replacing the entire resource, PATCH modifies only the specified fields.

  • Example: Updating a single field like changing a user’s phone number without altering other details.

6. DELETE Method

  • Used to remove a resource from the server.

  • Example: Deleting a user account or removing a post from a website.

  • The server processes the request and deletes the specified resource.

7. Conclusion

  • HTTP methods define how a client interacts with a server.

  • GET – Retrieve data.

  • POST – Send new data.

  • PUT – Replace existing data.

  • PATCH – Update specific fields.

  • DELETE – Remove data.

  • Understanding these methods is crucial for web development and API design.

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