Stream: hapi
Topic: Select specific fields
Kishore Karanam (Jun 04 2020 at 13:12):
Hi Team,
Is there any way to to select specific fields in a resource by using REST Search operations? like query only category, effectiveDateTime, issued, subject only from Observation
Regards,
Kishore
James Agnew (Jun 04 2020 at 15:16):
Probably the easiest way to do this is with the _elements parameter, e.g.
http://hapi.fhir.org/baseR4/Patient?_elements=name,gender
You could also do this with GraphQL, but that is more involved: http://hl7.org/fhir/graphql.html
Kishore Karanam (Jun 04 2020 at 15:25):
Thanks James. This works
Kishore Karanam (Jun 04 2020 at 16:00):
One more question James, shall we exclude fields like meta etc because they are coming by default
James Agnew (Jun 07 2020 at 17:21):
HAPI FHIR allows you to specify excludes, so you can omit meta if you want. This is not a standard FHIR feature though so be warned it's not cross-platform compatible: http://hapi.fhir.org/baseR4/Patient?_elements=name,gender&_elements:exclude=Patient.meta
Kishore Karanam (Jun 08 2020 at 14:08):
Ok noted and thanks for the update. It works as expected
Last updated: Apr 12 2022 at 19:14 UTC
