Common Response Codes

When a client sends its request to a server, the server sends status codes as its responses to those requests. Following are the standard HTTP status codes returned:

• 200 OK

  The request has been succeeded. The information returned depends on the HTTP method used in the request. For example, in a GET request, this status code indicates that the response contains the requested resource.

• 201 Created

  The request has been fulfilled resulting in a new resource being created.

• 202 Accepted

  The request has been accepted for processing, but the processing has not been completed. When the processing occurs, the request may or may not be completed.

• 204 No Content

  The server has successfully received the request but is not returning any response.

• 400 Bad Request

  The server cannot process the request because of a client error.

• 401 Unauthorized

  The response is sent when authentication is required or failed.

• 403 Forbidden

  The request is valid, but the server is refusing to react to the request.

• 404 Not Found

  The requested resource cannot be found but could be available in the future.

• 500 Internal server Error

  The server encountered an unexpected condition which prevented the server from fulfilling the request.