Imports github.com/dgrijalva/jwt-go golang.org/x/oauth2/jwt google.golang.org/api/identitytoolkit/v3 google.golang.org/api/iterator google.golang.org/api/option google.golang.org/api/transport Standard library imports bytes context crypto/rsa encoding/json errors fmt io io/ioutil net/http net/url path regexp strconv strings sync time