使用create-react-native-app和firebase登录google (使用指数)

Question

通过这个代码。

googleAuthenticate = (token) => {
const provider = firebase.auth.GoogleAuthProvider();
const credential = provider.credential(token)
return firebase.auth().signInWithCredential(credential) }


gglogin = async () => {
const LogInResult = await Google.logInAsync({
      androidClientId: '<my-androidClientId>',
      iosClientId: '<my-IOSClientId>',
      scopes: ['profile', 'email']
});

if(LogInResult.type === 'success'){
  Alert.alert(
        'Logged in!',
        `Hi ${user.name}!`,
      );
  this.googleAuthenticate(LogInResult.accessToken)
}

}

它可以获得用户名警报，但不能通过获得此错误向firebase发送令牌。

Possible Unhandled Promise Rejection (id: 0):
  TypeError: this.addScope is not a function. (In 
 'this.addScope("profile")', 'this.addScope' is undefined)`

请问哪里不对劲？

Answer 1

我注意到两个问题，credential是一个静态方法，第一个参数是一个id令牌，第二个参数是一个访问令牌(看起来你在传递一个访问令牌)：

const credential = firebase.auth.GoogleAuthProvider.credential(null, token);
return firebase.auth().signInWithCredential(credential);

Answer 2

您必须将您的作用域添加到provider，如下所示：

var provider = new firebase.auth.GoogleAuthProvider();
provider.addScope('profile');
provider.addScope('email');
firebase.auth().signInWithRedirect(provider);

请重新检查此文档：https://firebase.google.com/docs/reference/js/firebase.auth.GoogleAuthProvider

您需要更改代码，如下所示：

googleAuthenticate = (token) => {
const provider = firebase.auth.GoogleAuthProvider();
provider.addScope('profile');
provider.addScope('email');
const credential = provider.credential(token)
return firebase.auth().signInWithCredential(credential) }