What status code should I set for UPDATE (PUT) and DELETE (e.g. product successfully updated)?

For successful UPDATE (PUT) and DELETE operations in a RESTful API, the commonly used HTTP status code is 204 No Content. This status code indicates that the server has successfully processed the request and there is no additional content to send in the response body.

Here's how you might use the 204 No Content status code in the context of an API response:

http

HTTP/1.1 204 No Content
Date: Sat, 28 Aug 2023 12:00:00 GMT

In this example, after a successful UPDATE or DELETE operation, the server responds with a 204 No Content status code and omits the response body.

The 204 No Content status code indicates to the client that the operation was successful, and no further action or information is required. It's a good practice to use this status code in scenarios where you've successfully updated or deleted a resource but don't need to include any additional data in the response body.

Keep in mind that while 204 No Content is a common choice for successful UPDATE and DELETE operations, you should always refer to the HTTP specification and consider your API's specific requirements when choosing the appropriate status code for different situations.