Golang Goji: How to serve static content and api at the same time

I have been playing with Golang for the last two weeks and finally could make a real application work. It uses static HTML files served by NGINX and the API is using Goji Web Framework as backend. I don't use any Golang templating because everything is Angular.Js, so static is fine for my needs.

I would like to have the option to chose whether to use NGINX on production or let Go serve the static content at root using the same port the application uses (8000). This way development environments would not require NGINX to be installed.

So, tried adding a handle to the default mux like this

goji.DefaultMux.Handle("/*", serveStatic)

func serveStatic(w http.ResponseWriter, r *http.Request) {
//http.ServeFile(w, r, r.URL.Path[1:])
//http.FileServer(http.Dir("static"))
http.StripPrefix("/static/", http.FileServer(http.Dir("static")))

}

This handle is executed just after all the API paths have been registered (otherwise API would not work).

I already tried any sort of combination and either it redirects me to HTTP 404 or it displays the HTML content as text. Neither is good. I wonder if anyone has been here and could give me a heads up on what am I doing wrong.

Thanks.

Although this has nothing to do with my issue, here is the NGINX configuration I am using:

server {
listen 80;

# enable gzip compression
    gzip on;
    gzip_min_length  1100;
    gzip_buffers  4 32k;
    gzip_types    text/plain application/x-javascript text/xml text/css;
    gzip_vary on;
# end gzip configuration

location / {
    root /home/mleyzaola/go/src/bitbucket.org/mauleyzaola/goerp/static;
    try_files $uri $uri/ /index.html = 404;
}

location /api {
    proxy_pass http://localhost:8000;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection 'upgrade';
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

}

Solution

I had run into similar issues so perhaps the following points would be helpful.

Remember to register the handler for serving static content as the final route. Otherwise, it might match everything.
Perhaps try using absolute paths instead of relative ones.

Here's a simplified version of how my routes are set up with Goji.

func apiExampleHandler(context web.C, resp http.ResponseWriter, req *http.Request) {
    fmt.Fprint(resp, "You've hit the API!")
}

func main() {
    goji.Handle("/api", apiExampleHandler)

    // Static file handler should generally be the last handler registered. Otherwise, it'll match every path.
    // Be sure to use an absolute path.
    staticFilesLocation := "Some absolute to the directory with your static content."
    goji.Handle("/*", http.FileServer(http.Dir(staticFilesLocation)))

    goji.Serve()
}