Convert manual router func into http.Handler type

main.go

@@ -14,7 +14,9 @@ func contactHandler(w http.ResponseWriter, r *http.Request) {
 	fmt.Fprint(w, "<h1>Contact Page</h1><p>To get in touch, email me at <a href=\"mailto:example@example.com\">example@example.com</a></p>")
 }
 
-func pathHandler(w http.ResponseWriter, r *http.Request) {
+type Router struct{}
+
+func (router Router) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	switch r.URL.Path {
 	case "/":
 		homeHandler(w, r)
@@ -29,7 +31,7 @@ func pathHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func main() {
-	http.HandleFunc("/", pathHandler)
+	var router Router
 	fmt.Println("Starting the server on :3000...")
-	http.ListenAndServe(":3000", nil)
+	http.ListenAndServe(":3000", router)
 }