200 Status Code Explained
The 200 status code is by far the most common returned. It means, simply, that the request was received and understood and is being processed.
Why it Occurs
Standard response for successful HTTP requests. The actual response will depend on the request method used. In a GET request, the response will contain an entity corresponding to the requested resource. In a POST request, the response will contain an entity describing or containing the result of the action.
What it Means
The request has succeeded. The information returned with the response is dependent on the method used in the request.