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
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