Question Re: ABAP - Proxy Call - Content-Transfer-Encoding: base64 in Technology Q&A

ABAP - Proxy Call - Content-Transfer-Encoding: base64

VijayKonam — Tue, 08 Nov 2016 16:16:25 GMT

Hi,

We have developed and ABAP client proxy that sends payload and a pdf document as attachment to the PI system. The pdf attachment is base64 encoded using the "cl_http_utility" class method. However, when the message end up in PI system, the HTTP header of the PDF attachment Content-Transfer-Encoding is coming as "binary" instead of "base64". Did anybody able to change this to base64 before sending to PI?

Thanks,

Vijay K

Re: ABAP - Proxy Call - Content-Transfer-Encoding: base64

Sandra_Rossi — Tue, 08 Nov 2016 16:29:37 GMT

You explained how you calculate the base64 of the PDF, but could you explain how you embed the base64 in the message that you transmit to the web service? (which kind of proxy is it by the way?)

Re: ABAP - Proxy Call - Content-Transfer-Encoding: base64

former_member190293 — Wed, 09 Nov 2016 00:53:42 GMT

Hi Sandra!

I guess that attachment is added to ABAP client proxy message using IF_WSPROTOCOL_ATTACHMENTS interface:

https://blogs.sap.com/2006/04/19/xi-rfc-or-abap-proxy-abap-proxies-with-attachments/

Regards, Evgeniy.

Re: ABAP - Proxy Call - Content-Transfer-Encoding: base64

VijayKonam — Wed, 09 Nov 2016 15:24:28 GMT

Hello Sandra,

That is exactly how I added the proxy to the call, as Evgeniy mentioned.

Re: ABAP - Proxy Call - Content-Transfer-Encoding: base64

former_member190293 — Thu, 10 Nov 2016 05:23:46 GMT

Vijay!

I've already seen similar questions before but I couldn't find the way to set "Content-Transfer-Encoding" HTTP header in PI.

I can just suggest to send attachment in binary format (without encoding to Base64) or extend your source message structure and put Base64 encoded string in payload instead of using attachment.

Maybe other respective members will assist.

Regards, Evgeniy.

Re: ABAP - Proxy Call - Content-Transfer-Encoding: base64

VijayKonam — Thu, 10 Nov 2016 17:47:21 GMT

The requirement from the partner is base64.

I understand this solution Evgeniy. However, this would require me to develop something in Java, may be an adapter module, which I do not want to add to the design due to the maintenance and support issues. Ultimately, if SAP could not help then that is my only fall back option.

If ABAP could set that for us, it would be seem-less all the way.