What does HTTP status 204 (No Content) mean?

 
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HTTP_STATUS_NO_CONTENT

A 204 response is useful when an action succeeded but the client should remain on the current view, for example after saving settings or deleting a resource. Metadata headers can still describe the updated resource state.

A response to 204 is terminated by the header section and cannot contain a message body. Clients that receive payload bytes after 204 should treat the response as malformed.

Do not expect a response body

A 204 response ends after the header section and must not contain a message body. Applications can still return metadata such as validators when allowed. Clients should treat success independently from body parsing; code that always expects JSON after every successful request can incorrectly turn a valid 204 into a client-side error.

RFC 9110: HTTP Semantics


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