[SOLVED] How do you model a path parameter in the middle with http4k

How do you model a path parameter in the middle with http4k

I am using http4k-contracts and I am trying to model a route with a path parameter in the middle of the path, i.e.

This is the path: /player/{id}/match

This is my code (does not compile): "/player/" / Path.string().of("id") / "match" meta { ..

Whats the right way to do it?

Solution

If this doesn't compile, it probably means that the function on the end of that statement doesn't have enough parameters. You need something like this - notice the "dead" parameter in the middle of the lambda where the string "foo" would be injected:

"/prefix" / Path.of("first") / "foo" / Path.of("second") 
    bindContract GET to { first, _, second -> { 
        Response(OK).body("$first $second") }
    }

Trailing parameters work in exactly the same way, so by extrapolation you'd need this:

val route = "/prefix" / Path.of("first") / "foo" meta { description = "I am great"} bindContract GET to { first, _ -> { Response(OK).body(first) } }

For adding the meta tags, you can easily get tripped up by the infix whitespace, so try playing with the line breaks if it doesn't compile.