Hi,
I am looking for a way to retrieve stream data from a FHIR resource. In my case the resourceType is "DocumentReference" and the the Base64 content is stored just as in the FHIR R4 specification
Fast Healthcare Interoperability Resources (FHIR, pronounced "fire") is a draft standard describing data formats and elements (known as "resources") and an application programming interface (API) for exchanging electronic health records