go lang net/http request pattern - rest

Question

I'm writing a simple rest api server and I cannot get route dynamic url using net/http
http://localhost:8080/book/name
where name can be any string.
this was my attempt:
func viewIndex(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, 'html')
}
http.HandleFunc("/book/{name}", view)
this does not work, there is some cryptic note in the documentation of HandleFunc:
The documentation for ServeMux explains how patterns are matched.

Answer 1

This is a working solution.
The only interesting part it that patterns ending with / will be treated as prefix matcher for all urls.
So pattern /book/ will match:
/book/
/book/a
/book/bb
/book/a/b
sample simplified code:
package main
import (
"fmt"
"strings"
"net/http"
)
func book(name string) {
fmt.Printf("requesting book '%s'\n",name);
}
func view(w http.ResponseWriter, r *http.Request) {
url := r.URL.String()
if strings.HasPrefix(url, "/book/"){
name := url[6:]
book(name)
fmt.Fprint(w, name)
}
}
func main() {
http.HandleFunc("/book/", view)
http.ListenAndServe("localhost:8080", nil)
}