HTTP Methods - Overview
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, andDELETE.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
GETrequest to fetch the required data.Example:
youtube.com/searchfetches video results based on the search query.The server processes the request, retrieves the data from the database, and returns it to the client.
GETrequests 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,POSTrequests 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
POSTrequest.Data sent via
POSTis included in the request body rather than the URL, making it more secure thanGET.
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,
PUTmay create a new one.
5. PATCH Method
Similar to
PUTbut used for partial updates.Instead of replacing the entire resource,
PATCHmodifies 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.