Develop WS with putside in approach

Question

Hi,
i want to repalce java WS with abap WS without changing the proxy that already exist,from what i read in the forum this can be done only via
ESR since there is different name space to java and abap ,
since i want to create it from ESR i need to use the outside in approach .
there is guideline how to develop this kind of issue (outside in) ?
how can i import the data types from the proxy that alredy exist ?
Best Regards
Nina

Answer 1

Hi Nina,
   If you have a Java proxy, that means you should have a service interface (called Message Interface in earlier versions).
For outside IN approach, you just need to log in to your back end sap system, where you need to implement your ABAP proxy and go to SPROXY transaction.
Find your Service Interface/ Message Interface and generate the proxy by right clicking it.
Then ABAP classes and methods will be created, you need to implement the appropriate business logic in the Proxy methods.
Finally activate the abap code.
Read these for more help:
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b0f3cf81-e6da-2a10-6891-ef321fdc1a6b
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c05b36f9-e7d4-2910-4488-a46be7ba2906
Regards,
Ravi