Have been away from healthshare for a few years, so I'll look into what you said and then probably raise a wrc.

many thanks

Many thanks. 

I think I might be able to do a work around along those lines. 

1. replace the base64 entries with a placeholder and save the base64 entries as new QuickStreams. 
2. do the DTL transforms
3. put back the base64 entries just before I call out to the FHIR operations.

Any ways around this? It will be easier for the other developers to keep a like for like payload to OML_021 and ORU_R01 (obvious answer might be use HL7 v2 instead).
But I think I can answer this via attachments in via another API (POST /Binary)

I'll probably still have this need for outgoing payloads to a national system but handcrafting that might work.

 

Error 

ERROR <Ens>ErrBPTerminated: Terminating BP ProcessMessage # due to error: ERROR #5002: ObjectScript error: <MAXSTRING>%GetNext+12^%Iterator.Object.1
> ERROR #5002: ObjectScript error: <MAXSTRING>%GetNext+12^%Iterator.Object.1

Stack 

• ^%GetNext+12^%Iterator.Object.1^1
• e^FromJSONHelper+17^HS.FHIR.DTL.Util.JSON.Adapter.1^1
• e^FromJSONHelper+98^HS.FHIR.DTL.Util.JSON.Adapter.1^1
• e^FromJSONHelper+80^HS.FHIR.DTL.Util.JSON.Adapter.1^1
• e^FromJSON+9^HS.FHIR.DTL.Util.JSON.Adapter.1^1
• e^OnRequest+5^RIE.GLH.FHIR.Process.ProcessMessage.1^1
• e^MessageHeaderHandler+19^RIE.GLH.FHIR.Process.ProcessMessage.1^1
• e^MessageHeaderHandler+110^Ens.Actor.1^1  

The sample Binary resource I'm using is 7,463 K

https://interop-nwengland.github.io/LTW-Genomics/Binary-d6eeedd1-92d3-45...