SearchParamBundle.json

{
    "entry": [
        {
            "request": {
                "method": "POST",
                "url": "SearchParameter"
            },
            "resource": {
                "resourceType": "SearchParameter",
                "id": "ExtensionMemberEntitySearch",
                "url": "https://fhir.bbmri-eric.eu/fhir/SearchParameter/GroupMember",
                "base": [
                  "Group"
                ],
                "target": [
                  "Specimen",
                  "Group",
                  "Organization"
                ],
                "chain": [
                  "*"
                ],
                "name": "groupMember",
                "description": "Search parameter for searching Group by provided members via extension",
                "status": "active",
                "code": "groupMember",
                "type": "reference",
                "expression": "Group.extension('http://hl7.org/fhir/5.0/StructureDefinition/extension-Group.member.entity').value"
              }

        }
    ],
    "type": "transaction",
    "resourceType": "Bundle"
}