Why Do `net/http` Handlers Not Need to Close Request Bodies?

Why Closing Request Bodies in Handlers is Unnecessary

In net/http handlers, it might seem logical to place defer req.Body.Close() at the end or beginning of the function to ensure the request body is closed. However, this practice is unnecessary and should be avoided.

According to the official http.Request documentation:

// The Server will close the request body. The ServeHTTP
// Handler does not need to.

This statement explicitly states that the server will handle closing the request body, eliminating the need for developers to explicitly close it in their handlers. By following this recommendation, you can avoid potential race conditions and ensure the server's proper handling of request body cleanup.

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