api100.go

package api100

import (
	"fmt"
	"net/http"

	"github.com/carbocation/interpose"
	"github.com/carbocation/interpose/middleware"
	"github.com/gorilla/mux"
)

func GetSubrouter(prefix string) *interpose.Middleware {
	middle := interpose.New()
	middle.Use(middleware.GorillaLog())

	r := mux.NewRouter().PathPrefix(prefix).Subrouter()
	r.HandleFunc("/{name}/hallo", halloHandler)
	r.HandleFunc("/{name}/tschau", tschauHandler)

	middle.UseHandler(r)
	return middle
}

func halloHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	n := vars["name"]

	fmt.Fprintf(w, "Hi there, I love %s!", n)
}

func tschauHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	n := vars["name"]

	fmt.Fprintf(w, "Bis bald %s!", n)
}

api200.go

package api200

import (
	"fmt"
	"net/http"

	"github.com/carbocation/interpose"
	"github.com/carbocation/interpose/middleware"
	"github.com/gorilla/mux"
)

func GetSubrouter(prefix string) *interpose.Middleware {
	middle := interpose.New()
	middle.Use(middleware.GorillaLog())

	r := mux.NewRouter().PathPrefix(prefix).Subrouter()
	r.HandleFunc("/{name}/hallo", halloHandler)
	r.HandleFunc("/{name}/tschau", tschauHandler)
	r.HandleFunc("/{name}/servus", servusHandler)
	r.HandleFunc("/{name}/zeit", zeitHandler)

	middle.UseHandler(r)
	return middle
}

func halloHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	n := vars["name"]

	fmt.Fprintf(w, "Hi there, I love %s!", n)
}

func tschauHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	n := vars["name"]

	fmt.Fprintf(w, "Bis bald %s!", n)
}

func servusHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	n := vars["name"]

	fmt.Fprintf(w, "Servus %s!", n)
}

func zeitHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	n := vars["name"]

	fmt.Fprintf(w, "Es tut mir leid %s leider hab ich keine Uhr", n)
}

subbsp.go

package main

import (
	"log"
	"net/http"
	"subbsp/api/v100"
	"subbsp/api/v200"

	"github.com/gorilla/mux"
)

func main() {
	r := mux.NewRouter()

	a100 := api100.GetSubrouter("/api/v100")
	r.PathPrefix("/api/v100").Handler(a100)

	a200 := api200.GetSubrouter("/api/v200")
	r.PathPrefix("/api/v200").Handler(a200)

	log.Println("Server Running")
	log.Fatal(http.ListenAndServe(":4242", r))
}