gistfile1.go

import (
	"golang.org/x/net/context"
	"golang.org/x/oauth2"
	"golang.org/x/oauth2/google"
	"google.golang.org/appengine"
)

func CloudContext(c context.Context, scopes ...string) context.Context {
	client := &http.Client{
		Transport: &oauth2.Transport{
			Source: google.AppEngineTokenSource(c, scopes...),
		},
	}
	return cloud.WithContext(c, appengine.AppID(c), client)
}