Difference between PUT and POST HTTP Request - Testbook

HTTP, the cornerstone of data communication on the World Wide Web, utilizes different types of requests. Two of these, PUT and POST, are often compared due to their similarities and differences. This article dissects the characteristics and differences between PUT and POST HTTP requests.

Defining PUT HTTP Request

The PUT HTTP request method is employed when there is a need to update or alter resources available on a server. It primarily replaces a specific resource at the target URL with another resource.

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Defining POST HTTP Request

The POST HTTP request method comes into play when a resource needs to be added to an existing group of resources.

Comparing PUT and POST HTTP Request

S.No.	PUT	POST
1	The PUT method is idempotent. Multiple identical requests are treated as a single request.	The POST method is not idempotent. Multiple identical requests will create multiple resources on the server.
2	The PUT method is utilized to update a specific resource.	The POST method is employed to add a new resource to a collection.
3	PUT requests can be cached.	POST requests cannot be cached.
4	The PUT method is more specific in its actions.	The POST method is more abstract in its actions.
5	The PUT method typically uses the UPDATE query.	The POST method typically uses a CREATE query.
6	In the case of the PUT method, the client determines which URL resource should be updated.	In the case of the POST method, the server determines which URL resource should be added.

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Frequently Asked Questions

What is a PUT HTTP Request?

The PUT HTTP request method is used to revise or modify the resources obtainable on the server. Generally, it modifies the specific resource at the target URL with some other resources.