Question

我正在尝试将匿名Firebase帐户与提供商帐户相关联，并且我使用的是下面的javascript代码，这些代码是从此处的文档中复制的：https://firebase.google.com/docs/auth/web/account-linking

这是我使用的确切代码：

function mergeAccounts(credential){

    console.log("merging guest account with provider account");

    var auth = firebase.auth();

    // Get reference to the currently signed-in user
    var prevUser = auth.currentUser;
    // Sign in user with another account
    auth.signInAndRetrieveDataWithCredential(credential).then(function(user) {
      console.log("Sign In Success", user);
      var currentUser = user;
      // Merge prevUser and currentUser data stored in Firebase.
      // Note: How you handle this is specific to your application

      // After data is migrated delete the duplicate user
      return user.delete().then(function() {
        // Link the OAuth Credential to original account
        return prevUser.linkAndRetrieveDataWithCredential(credential);
      }).then(function() {
        // Sign in with the newly linked credential
        return auth.signInAndRetrieveDataWithCredential(credential);
      });
    }).catch(function(error) {
      console.log("Sign In Error", error);
    });
}

当我以匿名用户身份登录到Firebase，然后尝试使用我的Google帐户登录时，以上代码成功用google登录了我（第console.log("Sign In Success", user);行按预期工作，并向我显示了该用户控制台中的详细信息。但是然后我得到一个错误，提示Sign In Error TypeError: user.delete is not a function at 16login.js:212，它指向具有return user.delete().then(function() {

的行。

我使用的文档和代码段似乎暗示delete()是user的一个功能，因此我对为什么它会引发此错误感到困惑。

非常感谢您的帮助-谢谢。

Answer 1

您使用的是signInAndRetrieveDataWithCredential方法，而不是signInWithCredential，因此返回值是一个UserCredential对象。您需要通过回调函数的返回属性的user属性访问user：

    auth.signInAndRetrieveDataWithCredential(credential).then(function(userCredential) {
          const user = userCredential.user; // HERE
          console.log("Sign In Success", user);
          var currentUser = user;
          // Merge prevUser and currentUser data stored in Firebase.
          // Note: How you handle this is specific to your application

          // After data is migrated delete the duplicate user
          return user.delete().then(function() {
            // Link the OAuth Credential to original account
            return prevUser.linkAndRetrieveDataWithCredential(credential);
          }).then(function() {
            // Sign in with the newly linked credential
            return auth.signInAndRetrieveDataWithCredential(credential);
          });
        }).catch(function(error) {
          console.log("Sign In Error", error);
        });

Firebase Auth（javascript）：链接帐户时，“ TypeError：user.delete不是函数”

1 个答案: