package main
  import "encoding/json"
  import "net/http"
  import "time"
  import "fmt"
  import "os"
type Profile struct {
    Name string
    Hobbies []string
}
func main() {
   http.HandleFunc("/", rootFunc)//routeSet()
   err :=http.ListenAndServe(":3000", nil)
   checkError(err)
}
func checkError(err error) {
    if err != nil {
        fmt.Println("Fatal Error", err.Error())
        os.Exit(1)
    }
}
func rootFunc(w http.ResponseWriter, r *http.Request) {
    //fmt.Println("Request url : " + r.RequestURI)
    userProfile := make(chan Profile)
    
    go goFun(userProfile, w, r)
    
    profile := <-userProfile
    js, err := json.Marshal(profile)
    
    if err != nil {
        http.Error(w, err.Error(), http.StatusInternalServerError)
        return
    }
    
    w.Header().Set("Content-Type", "application/json")
    w.Write(js)
}
func goFun(u chan Profile, w http.ResponseWriter, r *http.Request) {
//    time.Sleep(1 * time.Second)
    u <- Profile{"Alex", []string{r.RequestURI, "programming"}}
}

{
    "Name": "Alex",
    "Hobbies": [
        "/hello",
        "programming"
    ]
}