How do I get http status from my own ServeHTTP function

[Jackie Li]

Hello everyone,

I'm trying to print a log on every http request like this:

date [url] - httpstatus

e.g.: 2012/10/24 15:30:23 [127.0.0.1:56485] / - 200

And I construct my own http.Handler like this:

type WrapHTTPHandler struct {

m *http.Handler

}

func (h *WrapHTTPHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {

h.m.ServeHTTP(w, r)

log.Printf("[%s] %s\n", r.RemoteAddr, r.URL)

}

But I couldn't find out how to get the http status code. 

Seems the status code is written directly to the response body, and there is no status code stored in http.Header, is it possible to get the status code here?

Thanks,

Jackie

[James McKaskill]

On Wed, Oct 24, 2012 at 9:41 AM, Jackie Li <jackie...@gmail.com> wrote:
> Seems the status code is written directly to the response body, and there is
> no status code stored in http.Header, is it possible to get the status code
> here?

ResponseWriter is an interface so you can just wrap it. For example
https://github.com/jmckaskill/krb-httpd/blob/master/proxy.go#L678

-- James

[Jackie Li]

Why I didn't think of that?

Thanks a lot!

--
Jackie

[Jackie Li]

That's exactly what I'm doing!

Thanks for the reply!

On Wed, Oct 24, 2012 at 4:01 PM, <benjami...@ai-solutions.com> wrote:

Add something to wrap the ResponseWriter?

type statusLoggingResponseWriter struct {

   status int

   http.ResponseWriter

}

func (w *statusLoggingResponseWriter) WriteHeader(code int) {

  w.status = code

  w.ResponseWriter.WriteHeader(code)

}

type WrapHTTPHandler struct {

m *http.Handler

}

func (h *WrapHTTPHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {

        myW := StatusLoggingResponseWriter{-1, w}

h.m.ServeHTTP(myW, r)

log.Printf("[%s] %s %d\n", r.RemoteAddr, r.URL, w.status)

}

--
 
 

--
Jackie