API Status Messages

In its use of the following HTTP status codes, the Historian API services adhere as closely as possible to standard HTTP and REST conventions.

Status Code	Usage
200 OK	Success message. The request has completed.
201 Created	Success message. A new resource has been created. The resource URI is available from the location header in the response.
204 No Content	Success message. An update to an existing resource has been applied.
400 Bad Request	Error message. The request was malformed. The response body provides additional information.
401 Unauthorized	Error message. Either you are not authenticated, or the authentication is incorrect. You must re-authenticate and try again.
403 Forbidden	Error message. You do not have permission to access this resource.
404 Not Found	Error message. The requested resource does not exist.
500 Internal Error	Error message. The server encountered an unexpected condition that prevented it from fulfilling the request.