Simple HTTP Server in Golang

simpleHttp.go

package main

import(
    "os"
    "fmt"
    "net/http"
    "encoding/json"
)

type msg struct {
    Message string `json:"msg"` //= {"msg":"Hello Golang Mpls Conf!"}
}

func main() {
	
	port := os.Getenv("PORT")  // port string
	if port == "" {
		port = "8080"
	}

    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        if err := json.NewEncoder(w).Encode( &msg{ Message: "Hello Golang MPLS Conf"} ); err != nil {
            http.Error(w, err.Error(), http.StatusInternalServerError)
        }
    })
    
    fmt.Printf("Running server on port: %s\nType Ctr-c to shutdown server.\n", port)
    http.ListenAndServe(":"+port, nil)
}

Great for testing other stuff, like firewalls, ssl proxying. Thanks.