Golang : Gorilla mux routing example

Tags : golang http mux web-route multiplex gorilla

This is a short tutorial on how to use Gorilla's mux. The code example below is taken from previous tutorial on web routing and with minor addition.

 package main

 import (

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

 func Greet(w http.ResponseWriter, r *http.Request) {
 name := mux.Vars(r)["name"]
 w.Write([]byte(fmt.Sprintf("Hello %s !", name)))

 func ProcessPathVariables(w http.ResponseWriter, r *http.Request) {

 // break down the variables for easier assignment
 vars := mux.Vars(r)
 name := vars["name"]
 job := vars["job"]
 age := vars["age"]
 w.Write([]byte(fmt.Sprintf("Name is %s ", name)))
 w.Write([]byte(fmt.Sprintf("Job is %s ", job)))
 w.Write([]byte(fmt.Sprintf("Age is %s ", age)))

 func main() {
 mx := mux.NewRouter()

 mx.HandleFunc("/", SayHelloWorld)
 mx.HandleFunc("/{name}", Greet)

 //to handle URL like

 //http://website:8080/person/Boo/CEO/199 <- if age > 199, will cause 404 error

 mx.HandleFunc("/person/{name}/{job}/{age:[0-199]+}", ProcessPathVariables)

 http.ListenAndServe(":8080", mx)

Tests output :


Name is Boo Job is CEO Age is 199


Hello person !

For more details and advanced methods, please refer to the official Gorilla mux documentation.

  See also : Golang : Get URI segments by number and assign as variable example

Tags : golang http mux web-route multiplex gorilla

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.