func startPoller(w http.ResponseWriter, r *http.Request) {
ctx := appengine.NewContext(r)
err := runtime.RunInBackground(ctx, poller)
if err != nil {
http.Error(w, err.Error(), 500)
}
}
// RunInBackground a wrapper for runtime.RunInBackground
func RunInBackground(req *wcg.Request, f func(*wcg.Request)) {
bgReq := req.Clone()
runtime.RunInBackground(NewContext(req), func(ctx context.Context) {
bgReq.SetLocal("__gaebg_context", ctx)
f(bgReq)
})
}