是否可以检查电话号码是否已在Firebase中注册，否则请转到 [英] Is it possible to check phone number is already registered in firebase else goto sign up

问题描述

在生成OTP之前，是否仍要检查登录活动中输入的手机号码是否已在firebase中注册?如果尚未注册，我想转到注册活动.

Is there anyway to check entered mobile number in login activity is already registered with firebase before generating OTP? If not registered, I want to goto signup activity.

推荐答案

以下是一种解决方案:

您可以编写一个Cloud函数并将每个电话号码添加到Cloud Firestore中，同时使用电话身份验证"，然后可以轻松地从您的应用中调用该函数并检查其是否已注册.

You can write a Cloud function and add each phone number to Cloud Firestore while using Phone Authentication and then you can easily call the function from your app and check whether it is registered or not.

访问 https://firebase.google.com/docs/functions/callable

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