Golang : HTTP Server Example




Simple tutorial on HTTP server examples with Golang. Run the codes below and point your browser to http://localhost:8080 or http://localhost:8080/replyname/yourname for example 2.

Example 1:

 package main

 import (
 "net/http"
 )

 func SayHelloWorld(w http.ResponseWriter, r *http.Request) {
 html := "Hello"
 html = html + " World"

 w.Write([]byte(html))
 }

 func main() {
 mux := http.NewServeMux()
 mux.HandleFunc("/", SayHelloWorld)

 http.ListenAndServe(":8080", mux)
 }

Example 2:

 package main

 import (
  "net/http"
  "strings"
 )

 func SayHelloWorld(w http.ResponseWriter, r *http.Request) {
  w.Write([]byte("Hello, World!"))
 }

 func ReplyName(w http.ResponseWriter, r *http.Request) {
  URISegments := strings.Split(r.URL.Path, "/")
  w.Write([]byte(URISegments[1]))
 }

 func main() {
  // http.Handler
  mux := http.NewServeMux()
  mux.HandleFunc("/", SayHelloWorld)
  mux.HandleFunc("/replyname", ReplyName)

  http.ListenAndServe(":8080", mux)
 }




By Adam Ng

IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.


Advertisement