Webservice Maintenance

[Former Member]

Web service

A service will be registered in Webservice by a service provider.

The client will search for the Service in Webservice and will get the info about the Server where the service he wants is placed and then he will contact the appropriate server.

My question is who will maintain the Webservice? In what language a Webservice will be maintained?

Thanks.

[Former Member]

Hi Jenni,

Just go through these links and they will surely help you learn more about Webservices:

<a href="/people/siva.maranani/blog/2005/09/03/invoke-webservices-using-sapxi Webservices using SAPXI</a>

<a href="/people/siva.maranani/blog/2005/05/23/communication-between-sap-system-webservice-using-proxies between SAP System & Webservice Using Proxies</a>

You can Go through these links to get some info about accessing Webservices:

http://help.sap.com/saphelp_nw04/helpdata/en/d6/f9bc3d52f39d33e10000000a11405a/content.htm

http://help.sap.com/saphelp_nw04/helpdata/en/b7/d7baaf1481a349ab723e3acd7334b3/content.htm

Now if you want to know how you you can expose an RFC as a webservice.... The info below will help you........

If you're on WAS 6.20 and up, you can expose an RFC as a webservice directly from WAS.

Or if you’re on Basis layer 4.6D, you'll need to use XI (or some other integration tool) to expose the RFC as a webservice.

To do this in XI you'll need to:

Integration Repository

1) Import the RFC

2) Define a message and datatype for the SOAP interface

3) Create inbound and outbound interfaces

4) Create maps between the RFC and SOAP messages

5) Create an interface map

Integration Directory

1) Create an RFC Receiver Channel

2) Create a SOAP Sender Channel

3) Generate the WSDL (Tools->Define Web Service)

You can then handoff the WSDL and a login username and password to your developer and they will have everything they need to make the WS call.

Here are answers to a few doubts u might have:

1) Do I need to actually create a WS that calls the RFC ? Isn’t the virtual interface exposed by the XI sufficient?

Yes, you need to create a WS in XI that calls the RFC.

2) If I really have to create the WS and deploy it in order to expose it with the XI, then what is my benefit of exposing it with the XI, why not just exposing it as a normal WS ?

You don't have WAS 6.20 or up. Even if you did, you may still want to expose it using XI in order to have all of your integration go through the same application.

3) If I expose my web service through the XI, how does the client application executes one of its methods? To which url does it have to access (the XI or the actual WS)?

You expose a SOAP interface in XI by generating a WSDL file. This file contains all of the information a developer will need to call the webservice including the URL.

You actually specify the URL when you generate the WSDL. Be sure to read the documentation to get the correct format because the URL that the wizard suggests isn't correct.

I hope it helps answer your question.

Regards,

Abhy

[bhavesh_kantilal]

Jenni,

All about webservices,

http://www.w3schools.com/webservices/default.asp

Take a lookat these docs,

<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5f3ee9d7-0901-0010-1096-f5b548ac1555">How to develop a Webservice using XI</a>

<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/befdeb90-0201-0010-059b-f222711d10c0">Howto Set Up a Webservices Scenario in XI</a>

Regards,

Bhavesh

[Former Member]

Hi Jenni,

Did you go thru the link ?

cheers,

Prashanth

[Former Member]

Hi Jenni,

Please look at this...

http://help.sap.com/saphelp_erp2005/helpdata/en/2b/07074155bcf26fe10000000a1550b0/frameset.htm

cheers,

Prashanth