How to do it…

In this recipe, we are going to create an HTTP server with a single handler, which will write Hello World! on an HTTP response stream and use a Gorilla CompressHandler to send all the responses back to the client in the .gzip format. Perform the following steps:

1. To use Gorilla handlers, first we need to install the package using the go get command or copy it manually to $GOPATH/src or $GOPATH, as follows:

$ go get github.com/gorilla/handlers

2. Create http-server-mux.go and copy the following content:

package main
import 
(
  "io"
  "net/http"
  "github.com/gorilla/handlers"
)
const 
(
  CONN_HOST = "localhost"
  CONN_PORT = "8080"
)
func helloWorld(w http.ResponseWriter, r *http.Request) 
{
  io.WriteString(w, "Hello World!")
}
func main() 
{
  mux := http.NewServeMux()
  mux.HandleFunc("/", helloWorld)
  err := http.ListenAndServe(CONN_HOST+":"+CONN_PORT,
  handlers.CompressHandler(mux))
  if err != nil 
  {
    log.Fatal("error starting http server : ", err)
    return
  }
}

3. Run the program with the following command:

$ go run http-server-mux.go