Register a service and Use $expand in composite OData service

[former_member227510]

Hi,

I went through the below link

I created two services.

My second service is in the current (same) system.

I created the external association and also generated the run-time objects.

However, I was not able to register using service maintenance feature.

1) How to register using service maintenance? Is it mandatory?

      Because when I click on service maintenance, everything Register and Maintain buttons are graded out.

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When I clicked Call Browser button after activating the main service, I was able to see the dependent service details also in the XML (browser).

2) Can I use $expand in the url to expand the second (dependent) service?

     As I am using multiple service and I don't want to use a single service.

     I want to link this way instead of creating multiple entity sets in the same service.

     Is it possible?

Any suggestions would be helpful

Regards,

Gopa

[JyotiD · Accepted solution]

Regarding you second query, Yes you can use $expand to the dependent service.

Create and External association and give you model reference to include dependent entity.

Regards,

Tarun

[former_member227510 · Accepted solution]

Hi Tarun,

Thanks for the reply.

I did register in the Gateway system by running the  transaction in /n/iwfnd/maint_service.

For the second query, can you send me some example? or some link?

Because I am trying to figure out how do I consume the second service itself firstly... I have created the external association. What will be the URL?

For example:

This is the Main service Employee

http://nwfront.xyz.net:2020/sap/opu/odata/sap/ZUI5_EMP_SRV/ZempSet(Empid='1')

The dependent service is Salaryhttp://nwfront.xyz.net:2020/sap/opu/odata/sap/ZUI5_SAL_SRV/ZsalSet

Regards,

Gopa

[JyotiD · Accepted solution]

Hi Gopa,

Check this document if it help.

Including an OData Service - SAP NetWeaver Gateway - SAP Library

Regards,

Tarun

[former_member227510 · Accepted solution]

Hi Tarun,

Firstly I thought that we have to register in the same transaction segw.

And, I wasn't unable to give the proper URL to access the other service. Silly mistake.

Thanks for the help.

Regards,

Gopa

[JyotiD · Accepted solution]

Hi Gopa,

Please close the thread if you have your answer, as It help other.

Regards,

Tarun

[JyotiD]

Hi Gopa,

Did you tried registering it in Gateway system ?

You can go to gateway system (same system in case of embedded development), Run transaction /n/iwfnd/maint_service, Click on add service -> Give you system alias to backend -> and you can register the service by searching from the list.

Regards,

Tarun