Make it easier to define REST routes for predefined queries

Product

Hot Chocolate

Is your feature request related to a problem?

This is already possible but will have to do it manually: define a GET endpoint and replace args to build the query and execute.

The solution you'd like

Ideally, I'd like to define the route and use gql args to build the query.

query ($fromRoute: Int!, $fromQuery: Int) @http(get: "/api/{fromRoute}") { .. }

Arguments could come from route values or the query string.

The issue names no files or tests. Start by reading the existing predefined-query handling and the manual GET endpoint approach described in the report. Done means a route can be declared for a predefined query, with arguments supplied from route values or the query string and used to build and execute the query.