There is one option that you can try is to call the standard report inside a FM and use that FM for creating a gateway service. The steps could be:
to create a RFC FM with import parameters as are in standard report and export parameter same as the final output table of the report.
call the report in the FM using SUBMIT keyword or CALL TRANSACTION . You can google it for more details and usage of it.
you will get the data of the final output table in the FM
create a gateway service using this FM. Some properties would be used as filter and rest would be the properties which are there in the export table. The required method is GET_ENTITYSET.
How will you stop the report execution. For instance report after submitting the output will be displayed in a ALV table or any error thenOData service flow will be stopped right ?
If you use the SUBMIT keyword with an addition of 'WITH RETURN' the flow will return to the calling program. This keyword works in the following way: You have a calling program ZTEST1 and another executable program(or report) ZTEST2 which would be called from ZTEST1. So while calling the other report, you have following options:
to pass the selection screen parameter values in the background
to return in the calling program after execution. This is achieved by WITH RETURN. This would hold the session value of calling program and would continue execution from the next statement after calling the program. So this way ALV would not get displayed.
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