The iWay Application Adapter for MUMPS RPCS service allows you to invoke any M routine and returns the result. The namespace, routine, starting tag, and routine parameters are supplied in the request. The tag is optional; if it is not provided, then the routine will be executed from the beginning.

<tns:RPCS location="mumps/RPCS" xmlns:tns="http://schemas.ibi.com/iwmumps/services">
  <tns:Namespace>VISTA</tns:Namespace>
  <tns:Routine>DILFD</tns:Routine>;
  <tns:Tag>VFILE</tns:Tag>;
  <tns:Parameters>
    <tns:Param>100001</tns:Param>
  </tns:Parameters>
</tns:RPCS>

The response is a simple document containing the value returned by the routine.

<RPCSResponse xmlns="http://schemas.ibi.com/iwmumps/services">
    <Value>1</Value>
</RPCSResponse>