REST supports default parameter mapping. The default parameters mapping is supported for only the query and path parameters in a HTTP request.
The default parameter mapping for REST will follow these rules:
Note: Input parameter mean either Input or Input-Output.
If an input parameter name is contained in the resource URI as a query, then the input parameter is automatically mapped as a query parameter. For example, if a query parameter ?custid=[custid] is contained in a resource URI and an input parameter custid is contained in the interface parameters, then the query parameter is automatically mapped with that input parameter.
If an input parameter name is contained in the resource URI as a path, then the input parameter is automatically mapped as a query parameter. For example, if a path parameter {custid} is contained in a resource URI and an input parameter custid is contained in the interface parameters, then the path parameter is automatically mapped with that input parameter.
If an input parameter name is contained in the resource URI as a query, then the input parameter is automatically mapped as a query parameter. For example, if a query parameter ?custid=[custid] is contained in a resource URI and an input parameter custid is contained in the interface parameters, then the query parameter is automatically mapped with that input parameter.