Serving a single page application with go net/http mux - http

Question

I'm building an api that also serves my react front end app, but am having an issue serving my index.html
Given that it's not really a go template I'm not using html/template.
I'm not seeing a strait forward way to serve the static html root of my app on all pages that do not start /api in the route.
I'm purposely trying not to use any go frameworks beyond gorilla's mux
My handler.go:
func Index(w http.ResponseWriter, r *http.Request) {
http.FileServer(http.Dir("./views"))
}
Routes.go:
type Route struct {
Name string
Method string
Pattern string
HandlerFunc http.HandlerFunc
}
type Routes []Route
var routes = Routes{
Route{
"Index",
"GET",
"/",
Index,
},
}
router.go
import (
"net/http"
"github.com/gorilla/mux"
)
func NewRouter() *mux.Router {
router := mux.NewRouter().StrictSlash(true)
for _, route := range routes {
var handler http.Handler
handler = route.HandlerFunc
handler = Logger(handler, route.Name)
router.
Methods(route.Method).
Path(route.Pattern).
Name(route.Name).
Handler(handler)
}
return router
}
main:
package main
import (
"./server"
"log"
"net/http"
)
func main() {
router := server.NewRouter()
log.Fatal(http.ListenAndServe(":8080", router))
}
Currently a blank page shows up, and thats it. My index.html is located in /views/index.html in relation to the executable (but I've tried it in relation to the handler as well)
Update
I was able to serve the html file using the method shown in this question: How do you serve a static html file using a go web server? However using mux and the more modularized file structure still yields a nice pretty, clean blank page.

Answer 1

In handler.go, your Index function is actually a no-op, since http.FileServer() returns a Handler, which is never passed the ResponseWriter or Request, hence the blank page.
Maybe try something like this to at least get past that:
func Index(w http.ResponseWriter, r *http.Request) {
http.FileServer(http.Dir("./views")).ServeHTTP(w, r)
}