Golang : Example of custom handler for Gorilla's Path usage.
In Gorilla WebToolkit's official documentation, the code fragment given in http://www.gorillatoolkit.org/pkg/mux#Route.Path does not show how to create custom handler to use together with Path()
function.
r := mux.NewRouter()
r.Path("/products/").Handler(ProductsHandler)
r.Path("/products/{key}").Handler(ProductsHandler)
r.Path("/articles/{category}/{id:[0-9]+}").
Handler(ArticleHandler)
This tutorial will demonstrate how to create custom handler for Path()
function. In this example, a custom http.Handler type must have a ServeHTTP method, otherwise the compiler will not compile the code.
package main
import (
"github.com/gorilla/mux"
"net/http"
"fmt"
)
type greetHandler struct {
gmux http.Handler
}
func (g *greetHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
//w.Write([]byte("Hello from greetHandler's ServeHTTP"))
name := mux.Vars(r)["name"]
w.Write([]byte(fmt.Sprintf("Hello %s from greetHandler's ServeHTTP! ", name)))
}
func main() {
mx := mux.NewRouter()
// bind gmux to mx(route)
ghandler := &greetHandler{gmux : mx}
mx.Path("/{name}").Handler(ghandler)
http.ListenAndServe(":8080", mx)
}
Hope this helps!
References :
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
Tutorials
+3.7k MariaDB/MySQL : How to get version information
+9.9k Golang : Calculate Relative Strength Index(RSI) example
+23.5k Golang : convert rune to integer value
+11k Golang : How to parse plain email text and process email header?
+32.5k Golang : Call a function after some delay(time.Sleep and Tick)
+39.7k Golang : How to check if a string contains another sub-string?
+13.2k Golang : Reset buffer example
+15.1k Golang : Check if a string contains multiple sub-strings in []string?
+34.1k Golang : How to split or chunking a file to smaller pieces?
+6.9k Golang : Check from web if Go application is running or not
+9.3k Golang : Generate 403 Forbidden to protect a page or prevent indexing by search engine