HistorianAPI 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. |