使用 Firebase 请求发送电子邮件验证

Question

我正在尝试在用户注册时发送电子邮件验证，这是我在 provider/user.ts 下的代码

onCreate(form: NgForm) {
var user = new User();
user.name = form.value.name;
user.email = form.value.email;
user.contact = form.value.contact;

if(form.value.gender == "male") {
  user.gender = "male";
} else {
  user.gender = "female"
}
let loading = this.mProv.getLoader('Creating your account...', 0);
loading.present();
this.afAuth.auth.createUserWithEmailAndPassword(form.value.email, form.value.password)
.then( res=> {
  let user = firebase.auth().currentUser;
  user.sendEmailVerification();
})
  .then(data => {
    user.id = data.uid;
    this.userProvider.addUser(user)
      .then(_ =>
        loading.dismiss()
      )
      .catch(error => {
        loading.dismiss();
        this.mProv.showAlertOkMessage('Error','Sign up error. Please try again later.');
      });
  })
  .catch(error => {
    loading.dismiss();
    this.mProv.showAlertOkMessage('Error','Sign up error. Please try again later.');
  });
}

我不知道user.sendEmailVerification放在哪里，我放的时候data.uid有红色下划线

 .then( res=> {
  let user = firebase.auth().currentUser;
  user.sendEmailVerification();
})

感谢所有帮助。

Answer 1

当您调用 .then(data => { ... }) 时，data 的参数是链的前一阶段返回的任何内容，但您使用 user.sendEmailVerification() 插入的阶段不返回任何内容。如果您不想等待 user.sendEmailVerification() 完成，那么您可以将该代码移至下一阶段，而不是使用单独的阶段：

this.afAuth.auth.createUserWithEmailAndPassword(form.value.email, form.value.password)
  .then(data => {
    let firebaseUser = firebase.auth().currentUser;
    firebaseUser.sendEmailVerification();
    user.id = data.uid;
    this.userProvider.addUser(user)
      .then(_ =>
        loading.dismiss()
      )
      .catch(error => {
        loading.dismiss();
        this.mProv.showAlertOkMessage('Error','Sign up error. Please try again later.');
      });
  })
  .catch(error => {
    loading.dismiss();
    this.mProv.showAlertOkMessage('Error','Sign up error. Please try again later.');
  });

或者，您可以使用async/await 而不是then，以获得更易于遵循的编程风格。这是我在web search 中找到的one very basic tutorial。