Routing with the gorilla/mux Package
A powerful HTTP router and URL matcher for building Go web servers
https://github.com/gorilla/mux
Install package
go get -u github.com/gorilla/mux
Build sample 1:
package main
import (
"fmt"
"github.com/gorilla/mux"
"net/http"
)
func main() {
r := mux.NewRouter()
r.HandleFunc("/foo", func(w http.ResponseWriter, req *http.Request) {
fmt.Fprintln(w, "hi foo")
}).Methods("GET")
http.ListenAndServe(":8000", r)
}
Run the test sample 1.
Build sample 2: It's helpful to match and pass in parameters within the request patch (for example, when implementing a RESTful API)
package main
import (
"fmt"
"github.com/gorilla/mux"
"net/http"
)
func main() {
r := mux.NewRouter()
r.HandleFunc("/users/{user}", func(w http.ResponseWriter, req *http.Request) {
user := mux.Vars(req)["user"]
fmt.Fprintf(w, "hi %s\n", user)
}).Methods("GET")
http.ListenAndServe(":8000", r)
}
Run and test sample 2.
Build sample 3: Use regular expression to qualify the patterns passed.
package main
import (
"fmt"
"github.com/gorilla/mux"
"net/http"
)
func main() {
r := mux.NewRouter()
r.HandleFunc("/users/{user:[a-z]+}", func(w http.ResponseWriter, req *http.Request) {
user := mux.Vars(req)["user"]
fmt.Fprintf(w, "hi %s\n", user)
}).Methods("GET")
http.ListenAndServe(":8000", r)
}
Run and test sample 3.
