The API makes use of HTTP status codes as per-spec. The kind of responses you might receive are:
- 200 OK
- 201 Created
- 400 Bad Request (for validation errors)
- 401 Unauthorized (authentication errors)
- 403 Forbidden (application Id errors)
- 404 Not Found (if a resource is not found)
- 409 Conflict (when you're trying to create a resource which already exists),
- 500 Internal Server Error