Some fhir repositories such as Firely Server does not support return=minimal header for batch requests.
In this case, we get an java.lang.ClassCastException in parseEntryAsResponse function: https://github.com/srdc/onfhir/blob/master/onfhir-common/src/main/scala/io/onfhir/api/client/FHIRBundle.scala#L212
since the response includes an OperationOutcome, indicating that return=minimal header is not supported on interaction the system_batch, which has no response field.
Some fhir repositories such as Firely Server does not support return=minimal header for batch requests.
In this case, we get an java.lang.ClassCastException in parseEntryAsResponse function: https://github.com/srdc/onfhir/blob/master/onfhir-common/src/main/scala/io/onfhir/api/client/FHIRBundle.scala#L212
since the response includes an OperationOutcome, indicating that return=minimal header is not supported on interaction the system_batch, which has no response field.