Need to have a schema with 3 fields. When I do the get_schema, it needs to do a web query to find out the choices for the first field. When the user selects that first field, it then needs to use a generated field and ANOTHER web query to get the choices for the second field. When the user selects that second field, it then needs to use a generated field and ANOTHER web query to get the choices for the third field.
Can this be done?
TLDR: Trying to develop an app for the Valley Transit Authority. Based on: https ://www.vta.org/trip-planner – One would configure it for a “LINE”, “DIRECTION”, “STOP” – what I want to do is return a schema that is based upon running the query: https ://www.vta.org/trip-planner, reading the webpage that comes back, and then gives the user a selector will all of the LINE’s in it. Then once the user selects a LINE we would us a generated field in the schema to do another dip into https://www.vta.org/trip-planner?nr_route=500 (See, we added the LINE) - then using the generated field we get the LINE and then we do another dip https ://www.vta.org/trip-planner?nr_route=500&nr_direction=NB and with that dip we generate another field and get the STOP.