Question

I’m dorking around with Google GO for the first time. I’ve extended the “hello world” application to try to have paths defined in the init section. Here’s what I’ve done so far:

package hello

import (
    "fmt"
    "net/http"
)

func init() {
    http.HandleFunc("/service", serviceHandler)
    http.HandleFunc("/site", siteHandler)
    http.HandleFunc("/", handler)
}

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprint(w, "Hello, there")
}

func serviceHandler( w http.ResponseWriter, r *http.Request) {
    fmt.Fprint(w, "this is Services")
}

func siteHandler( w http.ResponseWriter, r *http.Request) {
    fmt.Fprint(w, "this is Sites")
}

Only the handler() callback is ever executed — the others are ignored. E.g.: http://myserver/service/foo prints Hello, there. I had hoped that it would be this is Services.

Is there a better way to do service routing? Ideally, I would expect these to be separate scripts anyway, but it looks like Go has only one script, based on the fact that the app.yaml requires a special string _go_app in the script declaration.

Thanks!

Answer 1

According to the documentation at: http://golang.org/pkg/net/http/#ServeMux

path specs that do not have a trailing slash only match that path exactly. Add a slash to the end like so: http.HandleFunc("/service/", serviceHandler) and it will work as you expect.