Golang : HttpRouter multiplexer routing example
HttpRouter attempts to transcend other Golang multiplexers by claiming to have better variables and routing supports. It also claimed to scale better.
HttpRouter handles parameters differently from other routers/multiplexers. For example, it requires 3rd parameters in a function to get the URL parameters.
params httprouter.Params
instead of inside the function block
params := r.URL.Query()
name := params.Get(":name")
This is a code example on how to use HttpRouter.
package main
import (
"fmt"
"github.com/julienschmidt/httprouter"
"net/http"
)
func SayHelloWorld(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
w.Write([]byte("Hello, World!"))
}
func ReplyName(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
//parameters := r.URL.Query()
name := params.ByName("name")
w.Write([]byte(fmt.Sprintf("Hello %s !", name)))
}
func main() {
mx := httprouter.New()
mx.GET("/", SayHelloWorld)
mx.GET("/:name", ReplyName)
http.Handle("/", mx)
http.ListenAndServe(":8080", mx)
}
Sample output :
http://localhost:8080/Adam
Hello Adam !
http://localhost:8080/
Hello World !
For a full list of HttpRouter's features, please see https://github.com/julienschmidt/httprouter#features
Reference :
See also : Golang : Pat multiplexer routing example
By Adam Ng
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