Calling External Web Service from Workflow
Hello Gurus,
I'm working on a workflow development in which I have to invoke an external web service (non-SAP) from a workflow task. As soon as the work item is created in SAP, I need to send a notification via web service call. So I thought of having a workflow step to call the web Service.
(1) Can I use WF_EXTSRV wihout having a BSP application.? There is no BSP application in my case.
(2) What are the possible options I have to achieve this?
Thanks
Steve.
Hi,
I don't see a reason why you should necessarily use WF_EXTSRV.
Just create ABAP class in SE24, for example ZCLASS. Add interface IF_WORKFLOW to the interface tab. Implement the interface methods. Actually you don't really even have to implement them, just go into the methods and activate them. Now you have a workflow compatible ABAP class.
Now create new static&public method to it, for example CALL_WEBSERVICE. Add any importing and exporting parameters that you need (what info you need from workflow to call the web service and vice versa). Code your web service call from this new method.
Create new task in PFTC. Call your new method ZCLASS->CALL_WEBSERVICE. from the task. Add the task as a new step into the workflow in a suitable place.
Regards,
Karri
Edited by: Karri Kemppi on Nov 30, 2011 10:04 PM
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com.jdedwards.runtime.base.SystemException: There was a problem with the sever while running the business function invocarWS.\nThe current transaction has been lost.\nPlease exit the application and restart it.\nButton clicked Line number 1\nP5500055_W5500055A
at com.jdedwards.runtime.engine.form.FormEngine.doEvent(Unknown Source)
at com.jdedwards.runtime.vtcomponent.form.VTForm.doEvent(Unknown Source)
at com.jdedwards.runtime.engine.ButtonEngine.onClick(Unknown Source)
at com.jdedwards.runtime.vtcomponent.VTButton.onClick(Unknown Source)
at com.jdedwards.runtime.vtcomponent.VTButton.processVirtualEvent(Unknown Source)
at com.jdedwards.runtime.virtual.OWVirtual.processVTEvent(Unknown Source)
at com.jdedwards.runtime.virtual.OWVirtual.processEventLoop(Unknown Source)
at com.jdedwards.runtime.virtual.OWVirtual.run(Unknown Source)
at com.jdedwards.base.util.ThreadPool$WorkerThread.run(Unknown Source)
It seems like it is not possible to find the CALLWS dll... Althought it was built and compiled without errors and warnings...
I would like to debug the Business Function in C from Microsoft Visual Studio 2005, but I can't, because breakpoints are disable.
I have followed the following manual:
E1: BSFN: Debugging Business Functions Using Visual Studio .NET 2003, 2005 and 2008 (I have founded it in Oracle Support (Metalinki)).
And here they say:
"It is a normal feature of visual studio 2003/2005 to disable break point at the start of a debug session and display a warning saying no symbol is loaded. Break point will only be activated on demand when the code to debug is loaded in to the runtime memory".
I think is necessary add the referency with parent DLL (in my case, CALLWS.dll) but I don't know how can I do it. I have tested to insert in Business Function's source code the following line:
"#pragma comment(lib,"CALLWS.dll")" to force to include it, but when it was built:
************CALLWS************
B5500055.c
Replacing B5500055.obj
jdertdll.c
Creating library E:\e900\DV900\lib32\CALLWS.lib and object E:\e900\DV900\lib32\CALLWS.exp
LINK : fatal error LNK1104: cannot open file 'CALLWS.dll'
Microsoft (R) Manifest Tool version 5.2.3790.2075
Copyright (c) Microsoft Corporation 2005.
All rights reserved.
mt.exe : general error c10100b1: Failed to load file "E:\e900\DV900\bin32\CALLWS.dll". The system cannot find the file specified.
Adjusting DLL load addresses . . .
************Build Finished************
I don't understand nothing, because the path is totally right.
Any help is appreciated!
Thank you and regards.
Edited by: user12085357 on 29-abr-2010 2:55
Edited by: user12085357 on 29-abr-2010 3:02 -
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