HTTP Response Codes

The EBSCOhost Entitlement API returns an HTTP response code with each request. The API uses conventional HTTP response codes to indicate success or failure of the request. Response codes in the 400 range indicate an error in the information that was provided in the request. For example, a 404 HTTP response code is returned by the service if the information provided is missing a required parameter. Response codes in the 500 range indicate an error on the server, a database error or an API settings error. The HTTP response codes are below.

Response Codes

Code	Text	Retry	Description
200	OK	Yes	Everything worked as expected.
202	Accepted	Yes	The request has been accepted for processing, but the processing has not been completed.
204	No Content	Yes	The server has successfully fulfilled the PUT request and there is no additional content to send in the response payload body.
400	Bad Request	No	The request could not be understood by server due to malformed syntax. The client SHOULD NOT repeat the request without modifications.
403	Forbidden	No	The request is understood but access is not allowed due to the IP whitelisting policy.
404	Not found	No	The URI requested is invalid. Also returned when the requested format is not supported by the requested method.
409	Conflict	Yes	The request could not be completed due to a conflict with the current state of the resource.
429	Too Many Requests	Yes	Returned when a request cannot be served due to the application’s rate limit having been exhausted for the resource.
500	Internal Server Error	Yes	Something is broken. Try again later or you may contact the EBSCO customer service team at [email protected].
503	Service Unavailable Exception	Yes	Our servers are up, but overloaded with requests. Try again later or you may contact the EBSCO customer service team at [email protected].
504	Endpoint Request Timed-out Exception	Yes	Our servers are up, but the request couldn’t be serviced due to some failure at our server. Try again later or you may contact the EBSCO customer service team at [email protected].