description: The client ID from the Endpoint resource extension is used as an input parameter named “audience” in the token exchange request between PGO and the DVA authorisation server. package_name: medmij.fhir.nl.r4.providertasks derivation: constraint name: PtClientID type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://medmij.nl/fhir/StructureDefinition/ext-ClientID'} index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: 1.0.0-alpha.1 extensions: {} class: extension kind: complex-type url: http://medmij.nl/fhir/StructureDefinition/ext-ClientID base: http://hl7.org/fhir/StructureDefinition/Extension version: null