Serving static content with a root URL with the Gorilla toolkit

Question

I am attempting to use the Gorilla toolkit's mux package to route URLs in a Go web server. Using this question as a guide I have the following Go code:

func main() {
    r := mux.NewRouter()
    r.Handle("/", http.FileServer(http.Dir("./static/")))
    r.HandleFunc("/search/{searchTerm}", Search)
    r.HandleFunc("/load/{dataId}", Load)
    http.Handle("/", r)
    http.ListenAndServe(":8100", nil)
}

The directory structure is:

...
main.go
static\
  | index.html
  | js\
     | <js files>
  | css\
     | <css files>

The Javascript and CSS files are referenced in index.html like this:

...
<link rel="stylesheet" href="css/redmond/jquery-ui.min.css"/>
<script src="js/jquery.min.js"></script>
...

When I access http://localhost:8100 in my web browser the index.html content is delivered successfully, however, all the js and css URLs return 404s.

How can I get the program to serve files out of static sub-directories?

Answer 1

I think you might be looking for PathPrefix...

func main() {
    r := mux.NewRouter()
    r.HandleFunc("/search/{searchTerm}", Search)
    r.HandleFunc("/load/{dataId}", Load)
    r.PathPrefix("/").Handler(http.FileServer(http.Dir("./static/")))
    http.ListenAndServe(":8100", r)
}