missing ServeHTTP method

[algogrit]

cannot use ravenHandler (type func(http.ResponseWriter, *http.Request)) as type http.Handler in argument to n.UseHandler:
func(http.ResponseWriter, *http.Request) does not implement http.Handler (missing ServeHTTP method)

I am wrapping the http.HandlerFunc using raven.RecoveryHandler; when trying to use with Negroni.

[algogrit]

Perhaps changing the signature from:

func RecoveryHandler(handler func(http.ResponseWriter, *http.Request)) func(http.ResponseWriter, *http.Request)

to

func RecoveryHandler(handler http.HandlerFunc) http.HandlerFunc

might help?