Go Standard Library Cookbook

How to do it...

1. Open the console and create the folder chapter11/recipe08.
2. Navigate to the directory.
3. Create the file handlegroups.go with the following content:

        package main        import (          "fmt"          "log"          "net/http"        )         func main() {           log.Println("Staring server...")           // Adding to mani Mux           mainMux := http.NewServeMux()           mainMux.Handle("/api/",           http.StripPrefix("/api", restModule()))           mainMux.Handle("/ui/",           http.StripPrefix("/ui", uiModule()))           if err := http.ListenAndServe(":8080", mainMux); err != nil {             panic(err)           }         }         func restModule() http.Handler {           // Separate Mux for all REST           restApi := http.NewServeMux()           restApi.HandleFunc("/users", func(w http.ResponseWriter,                              r *http.Request) {             w.Header().Set("Content-Type", "application/json") fmt.Fprint(w, `[{"id":1,"name":"John"}]`) ...