Question

我正在使用Firebase身份验证和Firestore进行应用程序注册功能。目前，当我创建用户时，我还想在Firestore中创建一个文件。但是，我的onAuthStateChanged()函数只是跳过了此操作。

firebase.auth().onAuthStateChanged(function(user) {
       
    //User is signed in.
    if (user) {

        console.log("This happened.");

        //Create the Users document in the Firestore Database.
        firestore.collection("Users").doc(email).set({
            UserEmail: email,
            UserRole: role
        }).then(function() {
            console.log("Document successfully written!");
        }).catch(function(error) {
            console.error("Error writing document: " + error);
        });

        console.log("This also happened.");

        //Redirect user to the dashboard for their role.
        if(role === "Customer") window.location.replace("customer.html");
        else if (role === "Manager") window.location.replace("manager.html");
        else if (role === "Deliverer") window.location.replace("deliverer.html");
        else console.log("The value of role is not an accepted value: " + role + ".");

    }

});

在浏览器中运行它，我看到了“这件事”。和“这也发生了。”控制台输出，而不会收到其他控制台输出或错误。它还在if语句底部完成了重定向。我在此文件以及其他文件中对该功能的使用一直感到烦恼，因此，非常感谢您的帮助！谢谢！

Answer 1

任何需要用户登录状态的代码都必须在then()回调中。您已经做完了，所以就到了一半。

将数据成功写入数据库后必须运行的任何代码都必须位于firebase.auth().onAuthStateChanged(function(user) { //User is signed in. if (user) { //Create the Users document in the Firestore Database. firestore.collection("Users").doc(email).set({ UserEmail: email, UserRole: role }).then(function() { console.log("Document successfully written!"); //Redirect user to the dashboard for their role. if(role === "Customer") window.location.replace("customer.html"); else if (role === "Manager") window.location.replace("manager.html"); else if (role === "Deliverer") window.location.replace("deliverer.html"); else console.log("The value of role is not an accepted value: " + role + "."); else console.log("The value of role is not an accepted value: " + role + "."); }).catch(function(error) { console.error("Error writing document: " + error); }); } });回调内部。所以：

{{1}}

Firebase onAuthStateChanged（）跳过代码

1 个答案: