如何防止dynamicLink侦听器在react-native中多次触发？

Question

我已在我的本机应用程序中从firebase启用signInWithEmailLink()。>

一切都成功进行，还创建了用户，但是我认为onLink(handleLink)侦听器被多次触发，甚至在用户登录后也会导致错误。

日志：

link is tru
 LOG  email:  [email protected] //I have hidden the actual email
 LOG  email:  [email protected]
 LOG  email:  [email protected]
 LOG  USer created
 LOG  EROR:  [Error: [auth/invalid-action-code] The out of band code is invalid. This can happen if the code is malformed, expired, or has already been used.]
 LOG  EROR:  [Error: [auth/invalid-action-code] The out of band code is invalid. This can happen if the code is malformed, expired, or has already been used.]
 LOG  EROR:  [Error: [auth/invalid-action-code] The out of band code is invalid. This can happen if the code is malformed, expired, or has already been used.]

您可以看到它多次被触发，如何防止这种情况呢？

这是我的代码：

const handleLink = async link => {
  console.log('opened Link: ', link.url);
  if (auth().isSignInWithEmailLink(link.url)) {
    console.log('link is tru');
    try {
      const email = await AsyncStorage.getItem('email');
      console.log('email: ', email);
      await auth()
        .signInWithEmailLink(`${email}`, link.url)
        .then(() => {
          console.log('USer created');
        })
        .catch(err => {
          console.log('EROR: ', err);
        });
    } catch (err) {
      console.log('err: ', err);
    }
  } else {
    console.log('link is false');
  }
};

const link = dynamicLinks().onLink(handleLink);
非常感谢您的帮助

我已在我的本机应用程序的firebase中启用signInWithEmailLink（）。一切都成功完成，还创建了用户，但是我认为onLink（handleLink）侦听器被触发了多个...

Answer 1

由于console.log('email: ', email);被调用了3次，所以我假设console.log('link is tru');也被调用了3次，所以问题是整个handleLink函数在auth().signInWithEmailLink完成之前被调用了3次。