Use the {URI} parameter in the Navitia generic API
The {URI} parameter means that the call parameters are embedded in the request URL and are not, as most of the time, at the end of the request URL.
Example : To retrieve all the " stop_points " of metro line 1 (line:IDFM:C01373 )
We use the method: /v2/navitia/{uri}/stop_points/{id}
With the call parameter instead of {id}: lines%2Fline:IDFM:C01373