如何知道Firebase上的数据是否已保存,然后再转移到下一个网页?

时间:2016-09-25 15:25:34

标签: javascript web firebase firebase-realtime-database

我正在制作一个注册页面。用户输入他们的姓名,用户名,电子邮件,密码进行注册。点击注册后,他们会被重定向到新页面,但在移动之前,我想确保他们输入的数据保存在Firebase数据库中。在进入下一个网页之前,如何确保数据已保存?

function SignUP(){    
    const emailID = _email.value;
    const pass = _password.value;
    const auth = firebase.auth();
    const promise = auth.createUserWithEmailAndPassword(emailID, pass);
    promise.catch(e => console.log(e.message));
}
function writeUserData(user, fname, lname) {
  var myuser = {
    username: name,
    firstName: fname,
    lastName: lname
  };
    firebase.database().ref('/users').push(myuser);
    window.open("chat.html",'_self',false);
}
firebase.auth().onAuthStateChanged(firebaseUser => {
   if(firebaseUser){
       console.log(firebaseUser);
       const fName = _firstName.value;
        const lName = _lastName.value;
        const uName = _username.value;
        writeUserData(uName, fName, lName);
   }else{
       console.log('not logged in');
}});

1 个答案:

答案 0 :(得分:2)

.then连接到推送:

firebase.database().ref('/users').push(myuser).then(function(){
    //data is saved
});