Imports golang.org/x/net/context google.golang.org/appengine google.golang.org/appengine/user google.golang.org/appengine/log google.golang.org/appengine/memcache google.golang.org/appengine/urlfetch Standard library imports bytes encoding/base64 encoding/json errors fmt io/ioutil log math/big net/http reflect regexp strconv strings crypto/sha256 sync time unicode unicode/utf8