http.FileServer change headers

[Max]

What is correct way to change headers sent by http.FileServer ?

Thanks

[Kamil Kisiel]

I don't think you can. It uses serveContent internally which does a bunch of sniffing for content type, length, etc.

You can just write your own handler with similar API if you want it to work differently.

[Thomas Bushnell, BSG]

If you use ServeContent, instead of FileServer, you have access to the ResponseWriter, and you can create your own which sits in between the ServeContent code and the real ResponseWriter, and that gives you complete control. But you lose the filesystem handling in FileServer.

--
You received this message because you are subscribed to the Google Groups "golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

[Brad Fitzpatrick]

Just set headers in your ServerHTTP before or after you call its ServeHTTP(rw, r)

On Thu, Aug 15, 2013 at 6:25 AM, Max <max.se...@gmail.com> wrote:

What is correct way to change headers sent by http.FileServer ?

Thanks

--

[ace....@gmail.com]

Hello Brad, I'm new to Go and I'm facing the same issue. My assets served by FileServer aren't being cached. I don't quite follow your suggestion/answer, would you be kind enough to provide a small code snippet?

[Soheil Hassas Yeganeh]

Probably something like this:

package main

import (
"net/http"
)

func main() {
changeHeaderThenServe := func(h http.Handler) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// Set some header.
w.Header().Add("Keep-Alive", "300")
// Serve with the actual handler.
h.ServeHTTP(w, r)
}
}

http.Handle("/", changeHeaderThenServe(http.FileServer(http.Dir("files"))))
panic(http.ListenAndServe(":8080", nil))
}

-- Soheil

[ace....@gmail.com]

Works great! Thanks a bunch Soheil!