Stream: dotnet
Topic: Finding search parameters of an element.
Muhammad Abubakar Ikram (Jan 19 2022 at 12:54):
Can we find the search parameter against an element? after fetching StructureDefinition of a resource from specification zip?
for example I got all the reference elements from the StructureDefinition of MedicationRequest resource. Now I want to take only those reference elements, that have search parameter linked to them.
MedicationRequest.reported[x] does not have search parameter linked to it, I want to skip
MedicationRequest.subject have a search parameter linked to it, I want to take
Brian Postlethwaite (Jan 19 2022 at 14:48):
They aren't in the structure definition, they are in the capability statement for the server.
Brian Postlethwaite (Jan 19 2022 at 14:48):
http://hl7.org/fhir/capabilitystatement-definitions.html#CapabilityStatement.rest.searchParam
Muhammad Abubakar Ikram (Jan 19 2022 at 17:46):
I want to see, if the specific element of a resource has search parameter linked to it. Can I get this done using fhir net api?
Gino Canessa (Jan 19 2022 at 17:59):
There is a search parameter registry, which lists all the Search Parameters defined by the core specs.
In the FHIR Net API, there should be a List<SearchParamDefinition> named SearchParameters in Hl7.Fhir.Model.ModelInfo. It contains the search parameters from the core spec as well. You will need to parse the element path out of the Path, XPath, or Expression properties, depending on what is easiest for you.
That said, Search Parameters can be either defined in the core specification or externally (e.g., US-Core defines man search parameters). Loading external search parameters would involve downloading and parsing the relevant package.
Brian Postlethwaite (Jan 19 2022 at 23:13):
And a specific server may not support it too.
Gino Canessa (Jan 19 2022 at 23:14):
(which is true for all search parameters =)
Muhammad Abubakar Ikram (Jan 24 2022 at 06:31):
This is how I done that, after getting element from StructureDefinition.
SearchParamDefinition spd = SearchParameters.FirstOrDefault(sp => sp.Expression == refElement.Path);
of course I am dealing only with implemented search parameters only.
Last updated: Apr 12 2022 at 19:14 UTC
