HTTP 202 status code

The server has accepted the request but has not yet processed it. Just as it may be denied, the request may or may not ultimately be executed. In the case of asynchronous operations, there is no more convenient way than sending this status code.

The purpose of returning a 202 status code response is to allow the server to accept requests from other processes (such as a batch-based operation that is only performed once a day) without having to keep the client connected to the server until All batch processing operations are completed. A response that accepts request processing and returns a 202 status code should contain some information in the returned entity indicating the current status of the processing, as well as a pointer to a processing status monitor or status prediction so that the user can estimate whether the operation has been completed.