HTTP Status

All QI Tech APIs use the following standardization for HTTP response status codes, in accordance with RFC 7231:

Status HTTP	Meaning	Description
400	Bad Request	The request sent has a formatting error. In most cases, we return an explanation in the response body indicating where the error is.
401	Unauthorized	There was an authentication problem; verify that the API Key is correct and in the correct header, as described in the Authentication section.
403	Forbidden	The endpoint accessed is for internal use and is not available for this API Key.
404	Not Found	The requested data was not found using the key provided. This status is also returned when an invalid endpoint is requested.
405	Method Not Allowed	The HTTP method used does not apply to the endpoint used.
406	Not Acceptable	The data sent in the request body is invalid. In general, this means the data sent is not valid JSON.
409	Conflict	The request id matches an id that was already processed previously. This status is returned in the case of duplicate requests sent to the server.
500	Internal Server Error	We had a problem processing this request; when we encounter this error our specialists are automatically notified and begin analysis and resolution immediately.
503	Service Unavailable	You have encountered an outage, planned or not, of our server infrastructure.