topic Re: Http request handler - Send response in Application Development and Automation Discussions

Http request handler - Send response

konstantinos_vassiliadis — Mon, 15 Jun 2015 13:30:03 GMT

Dear experts,

I have an http communication - bidirectional - between SAP and a non-SAP system. In the direction from non-SAP to SAP, I defined a request handler using SE24 and SICF. Communication works fine.

My problem is to send a response from SAP to the non-SAP system. I see that SERVER input parameter of implemented method HANDLE_REQUEST gives access to the response object by calling IF_HTTP_SERVER->RESPONSE. To set the data of the response there is

IF_HTTP_RESPONSE->SET_DATA by passing xstring as input parameter.

What I do not understand is how to actually send these data to the client - the non-SAP system that originally sent a request to SAP. I see no send mehod in IF_HTTP_SERVER, there is only a method SEND_PAGE but I am not sure this is the right one.

Kind regards,

Konstantinos

Re: Http request handler - Send response

Former Member — Mon, 15 Jun 2015 15:25:45 GMT

Hi,

Not sure if it helps or not. But a pointer may be.

Did you check class CL_HTTP_SERVER method SEND_RESPONSE .

This class has used the interface IF_HTTP_SERVER , so ideally you can cast the instance of IF_HTTP_SERVER and call the method .

Re: Http request handler - Send response

konstantinos_vassiliadis — Tue, 16 Jun 2015 07:15:33 GMT

Thanks a lot Rudra!

however I have the following code, not sure how to do it properly

* the following line is the importing parameter to class which is the http request handler

* and thus implements interface IF_HTTP_EXTENSION

* SERVER TYPE REF TO IF_HTTP_SERVER

FIELD-SYMBOLS: <ls> type REF TO CL_HTTP_SERVER.

................

ASSIGN server to <ls> CASTING.

which gives error when activating:

"<LS>" and "SERVER" contain references, internal tables, or strings. In

the current statement, these must occur at the same offset position and

they must be compatible.

How can I properly cast SERVER to type CL_HTTP_SERVER so that I use SEND_RESPONSE method?

Konstantinos

Re: Http request handler - Send response

konstantinos_vassiliadis — Tue, 16 Jun 2015 08:33:47 GMT

FYI I used the following code

data: lcl_cl_http_server type REF TO cl_http_server.

.......................

lcl_cl_http_server ?= server. "<-- widening cast

CLEAR: lv_rc.

CALL METHOD lcl_cl_http_server->SEND_RESPONSE

RECEIVING

RC = lv_rc.

and it seems to have worked (lv_rc is returned zero and the response was sent to client)

Re: Http request handler - Send response

Former Member — Tue, 16 Jun 2015 09:05:38 GMT

Yeah, That is the way to cast using "?=" in ABAP.

Glad to hear it worked.