Registering routes, but define the routing outside of the interface

[ekkinox]

Hello team, first of all, congrats for Fx, it's amazing.

In your example, you do the following:

type Route interface {
  http.Handler
  Pattern() string
}

and register a route with the following

func AsRoute(f any) any {
  return fx.Annotate(
    f,
    fx.As(new(Route)),
    fx.ResultTags(`group:"routes"`),
  )
}

fx.Provide(
    AsRoute(NewEchoHandler),
    AsRoute(NewHelloHandler),
),

I'm trying to find a way to have routes, that would NOT carry routing information (so no Pattern() method), but instead to define routing information at the moment I register my routes:

func AsRoute(pattern string, f any) any { // how to do ?}

fx.Provide(
    AsRoute("/echo", NewEchoHandler),
    AsRoute("/hello", NewHelloHandler),
),

I tried to play with Annotate and making structs that would hold the hanldler constructor function + the pattern, but I can find a way to make this work.

If you have any suggestions, it would be greatly appreciated !