Best Way to make own NotFound page using net/http ?

[RickyS]

I find that net/http:server.go hardcodes in a particular NotFound handler and function.
I started to read the doc and server.go and found a Handle interface, several Handle functions, handle functions, a HandlerFunc and HandleFunc, and seven functions named ServeHTTP, but only the suggestion that for 'more control' I should create a custom Server.
But it seems to me that it is the ServeMux that selects the NotFound function, so I'd need my own mux.  I can see how to use my own mux, so maybe I can just use that in the default Server.
Is that the way to install a unique NotFoundHandler?   Are there any examples?

It seem like I'd have to re-implement a good chunk of server.go to do this, which I'd like to avoid.

  RickyS

[Daniel Theophanes]

You could use something like:

github.com/julienschmidt/httprouter

http://godoc.org/github.com/julienschmidt/httprouter

It has a NotFound handler (as well as a PanicHandler).

-Daniel

[Robert]

Wow, this httprouter package looks really well done. Cool stuff.

[Matt Silverlock]

And the ever-famous gorilla/mux: https://github.com/gorilla/mux

r.NotFoundHandler = http.HandlerFunc(notFound)

Goji (https://goji.io/) also has a similar feature:

https://godoc.org/github.com/zenazn/goji/web#Mux.NotFound

[Jesse McNelis]

On 16/05/2014 7:22 am, "RickyS" <rickys...@gmail.com> wrote:
> Is that the way to install a unique NotFoundHandler?   Are there any examples?
>

You just have to write a http.HandlerFunc that will call http://golang.org/pkg/net/http/#ServeMux.Handler

If it returns a pattern of "" then it's not found and you can call your notfound handler.

eg. http://play.golang.org/p/WTdaAwrl12

[Matt Harden]

I'm confused. Doesn't this example show how do do your own not found handler?

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