Conventional HTTP response codes are used to indicate success or failure of a request.
| Response Code | Description |
|---|---|
| 200 OK | Everything worked as expected. |
| 201 Created | Order object successfully created. |
| 400 Bad Request | General client error, usually because of missing or malformed data. |
| 401 Unauthorized | The API Key was not authorized. |
| 404 Not Found | The requested resource was not found. |
| 409 Conflict | The request could not be completed due to a conflict with the current state of the resource. |
| 500, 502, 503, 504 | Server errors. |