Trying out the gorilla/pat request router and dispatcher package for Go.

app.go

package main

import (
  "github.com/gorilla/pat"
  "net/http"
)

func main() {
    r := pat.New()

    r.Get("/route1", http.HandlerFunc(Route1Handler))
    r.Get("/route2", http.HandlerFunc(Route2Handler))
    r.Get("/route3/{variable}", http.HandlerFunc(Route3Handler))
    r.Get("/route4/{variable}/{id:[0-9]+}", Route4Handler)
    r.Get("/", http.HandlerFunc(HomeHandler))

    http.Handle("/", r)
    http.ListenAndServe(":3000", nil)
}

func Route1Handler(w http.ResponseWriter, r *http.Request) {
    w.Write([]byte("Route1Handler"))
}

func Route2Handler(w http.ResponseWriter, r *http.Request) {
    w.Write([]byte("Route2Handler"))
}

func Route3Handler(w http.ResponseWriter, r *http.Request) {
  variable := r.URL.Query().Get(":variable")
  w.Write([]byte("Route3Handler " + variable))
}

func Route4Handler(w http.ResponseWriter, r *http.Request) {
  variable := r.URL.Query().Get(":variable")
  id := r.URL.Query().Get(":id")
  w.Write([]byte("Route4Handler " + variable + " " + id))
}

func HomeHandler(w http.ResponseWriter, r *http.Request) {
    w.Write([]byte("HomeHandler"))
}