System processes needed for web service call

Hi experts,
one theoretical question: how about the system processes needed for a web service call? If have created a test service that does nothing except to wait for 10 seconds. When I call it from outside, no extra process is busy (as seen in trx SM50). Is it possible that one web service call (from outside -> SAP machine) does not need a DIA or BTC process on SAP machine?
Thanks in advance for your help!
Kind regards, Matthias

Hi,
Of course a web service needs a dialog workprocess to run.
But if you used the "wait" abap instruction, it may be that this instruction frees the work process ?
Regards,
Olivier

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I have a scenario similar to yours. A client webdynpro application accessing a EJB methods exposed as web service. Those EJB's methods calls R3 RFC's. The client requirements' was to allow SSO through all the layers (Webdynpro -> EJB WS -> RFC). The Webdynpro and EJB's are deployed on the same WAS.
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4 - In your EAR Project, open your "application-j2ee-engine.xml" and add the References:
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5 - Create your EAR File and Deploy;
6 - Check if the web service now requires Authentication: go to http://<host>:<port>/index.html and click on Web Services Navigator. Test your Web Service. Your Web Service should requiere you to log in before execute the test;
7 - Go back to your Visual Administrator and create a HTTP Destination. Provide your WS URL (should be something like "http://<host>:<port>/<WS_NAME>/Config1?style=document"). Choose Authentication: Logon Ticket. Save your Destination;
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9 - Open your model's Logical Ports node, go to the Security tab, and choose "Use SAP Logon Ticket";
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<YOUR_NODE_DEFINITION>.modelObject()._setHTTPDestinationName("<YOUR_HTTP_DESTINATION_NAME>");
11 - Save All Metadata and deploy your Webdynpro App. Test your results.
I hope it helps you, as the documentation on how to implement this scenario is scattered through the SDN and all the SAP help portal.
Best regards,
Paulo.

System processes needed for web service call

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