FHIR Server return a 200 200 HTTP status
While working with GET request I encountered this situation where FHIR Server return a responseStatusHTTP "HTTP/1.1 200 200" instead of "HTTP/1.1 200 OK" (as highlighted in the attached screenshot).
Although the response code seems valid, these bundles have a total value of 0.
Could anyone clarify what "200 200" signifies in this context? Is there an issue with my setup, or does this indicate a specific condition related to the empty bundle search?
Thank you in advance for your help!
Comments
200 200 in Bundle.entry.response.status is still indicating HTTP status code 200. The relevant definition says that this status field “SHALL start with a 3 digit HTTP code (e.g. 404) and may contain the standard HTTP description associated with the status code.” That means the text after the 3-digit code is optional descriptive text, and it is not required to be OK; seeing 200 200 means the field starts with a valid HTTP code and then contains nonstandard trailing text rather than the usual description. [1]
An empty search bundle with total = 0 does not, by itself, imply an HTTP error. For FHIR search behavior, InterSystems documents that a search only returns 404 Not Found and OperationOutcome for an unknown resource type; otherwise a successful search can return HTTP 200 even when no matches are found. [2][3]
So this does not point to a setup problem based on the material found. It indicates a successful HTTP response with no matching resources in the search result, while the textual phrase paired with the code is simply nonstandard formatting in that status string. [1][2][3]
Sources: