Custom Mux

Revel provides an ability to add a custom Mux into the framework. This is useful if you are using a package that already includes a HTTP mux (such as Go swagger or Hugo). You use the AddInitEventHandler to inject the mux into the server engine. You pass the prefix of the path that will be handled by the mux and the http.HandlerFunc in the case were the Go engine is used (or fasthttp.RequestHandler for the FastHTTP engine). The mux is called for every request that begins with the prefix. Revel matches the longest prefix first, then the shorter one (longer is defined by having more forward slashes)

Notes

• Revel filters are not called for the custom MUX.
• Requests will still be logged.

Below is a small implementation of this

	revel.AddInitEventHandler(func(event revel.Event, i interface{}) revel.EventResponse {
		switch event {
		case revel.ENGINE_BEFORE_INITIALIZED:
            revel.AddHTTPMux("/this/is/a/test", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                fmt.Fprintln(w, "Hi there, ", r.URL.Path)
                w.WriteHeader(200)
            }))
            revel.AddHTTPMux("/this/is/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                fmt.Fprintln(w, "Hi there, shorter prefix", r.URL.Path)
                w.WriteHeader(200)
            }))
    
		}
		return 0
	})