在http.HandlerFunc中调用http.FileServer

Question

so I've had some trouble with this lately... Here is my code:

https://gist.github.com/anonymous/af1e6d922ce22597099521a4b2cfa16f

My problem: I'm trying to serve up some HTML files from a folder: ./docs/html. My folder structure:

.
├── docs
│   └── html
│       ├── index.html
│       └── rest.html
└── main.go

You'll notice in the gist I am calling the ServeHTTP method on the http.HandlerFunc ServeDocs, which is then going through a router (mux.Router). The problem I'm having is for some reason the only file being served up at localhost:8080/ is index.html, and when I navigate to localhost:8080/rest.html I get a 404.

The really odd part is that when I remove all the router code and do something like the following:

fs := http.FileServer(http.Dir("./docs/html"))
http.Handle("/", fs)

log.Println("Listening...")
http.ListenAndServe(":3000", nil)

Everything works as it should. Anybody know what's going on? I've spent hours trying to figure this out and I've finally given up.

Answer 1

It works if you use mux.Router's Path method

r.Methods(route.Method).Name(route.Name).Handler(handler)
r.Path(route.Pattern)

instead of mux.Route's Path method (strikethrough'd below)

r.Methods(route.Method).Path(route.Pattern).Name(route.Name).Handler(handler)

I am not much familiar with gorilla/mux so couldn't find exact reason behind this.