Match route in middleware about goji

[vidfamn]

I solved my use case in a bit dubious manner with a type assert and string matching instead of using the pattern.Match(ctx, r) function.

Example below, if anyone has a similar issue while porting middleware from zenazn/goji to goji/goji.

package main

import (
    "fmt"
    "net/http"

    "goji.io"
    "goji.io/middleware"
    "goji.io/pat"
    "golang.org/x/net/context"
)

func hello(ctx context.Context, w http.ResponseWriter, r *http.Request) {
    name := pat.Param(ctx, "name")
    fmt.Fprintf(w, "Hello, %s!", name)
}

var routes = []string{
    "/", "/hello", "/hello/:name",
}

func myMiddleware(h goji.Handler) goji.Handler {
    fn := func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
        gojiPattern := middleware.Pattern(ctx)
        if gojiPattern == nil {
            h.ServeHTTPC(ctx, w, r)
            return
        }

        requestResource := gojiPattern.(*pat.Pattern).String()

        for _, resource := range routes {
            if requestResource == resource {
                fmt.Println("matched saved resource!")
                // do stuff
                break
            }
        }

        h.ServeHTTPC(ctx, w, r)
    }

    return goji.HandlerFunc(fn)
}

func main() {
    mux := goji.NewMux()
    mux.HandleFuncC(pat.Get("/hello/:name"), hello)
    mux.UseC(myMiddleware)

    http.ListenAndServe("localhost:8000", mux)
}

[zenazn]

This issue has been idle for a few months now, so I'm closing it to keep everything tidy. It looks like you were able to solve your problem using type assertions in middleware, but if you're still in the market for solutions this might be the sort of problem that is best solved using custom Pattern types.