将Firebase Auth用户映射到Firestore文档 [英] Mapping Firebase Auth users to Firestore Documents
问题描述
我正在尝试使用 Firebase 的Firestore数据库来处理Android应用中的User.
I'm trying to use Firebase's Firestore database to handle Users in my Android app.
最初，我想使用从Auth包返回的 id (字符串)，并将其设置为数据库中users Collection的ID.在Collection users内部创建Document时，我将uid字段设置为该身份验证软件包字符串.
Initially I want to use the id returned from the Auth package (a string), and set that as the id for the users Collection in the database. When creating a Document inside of the Collection users, I set a uid field to that auth package string.
我意识到没有办法将该字符串设置为可索引的值，以使查询类似:
I realize there is no way of setting that string to an indexable value so that queries like:
// get Auth package uid string
db.collection("users").document(auth_uid_string);
会工作的.
因此，我猜想，替代方法是使用Query.whereEqualTo("uid", auth_uid_string)，它将为我提供列表中的用户，因为firestore不假设查询是针对唯一值的.
So the alternative, I guess, is to use Query.whereEqualTo("uid", auth_uid_string) which would give me the user in a list, because firestore doesn't assume the query is for a unique value.
我想避免上述解决方案，而是想出一种方法来将应用程序的users存储在firestore中，并使用auth包来验证我是否提取了正确的用户.这样的解决方案有可能吗?还是我应该尝试使用不同的firebase服务，甚至只在heroku或其他操作系统中运行Postgres服务器?
I want to avoid the above solution, and devise a way to store the users of the app in firestore, and use the auth package to verify that I fetch the correct user. Is such a solution possible? Or should I try a different firebase service, or even just run a postgres server in heroku or something?
推荐答案
我不确定如何在android中做到这一点，但是使用JS，我正在执行以下操作:
I am not sure how to do this in android, but with JS I am doing the following:
firebase.firestore().collection('users').doc(currentUser.uid).set(currentUser)
currentUser是身份验证功能返回的用户对象(我使用signInWithCredential)
运行良好.我确定您可以在android中实现类似的方法.
currentUser is the user object that the authentication function returns (I use signInWithCredential)
It is working perfectly. I am sure you can implement a similar approach in android.
这篇关于将Firebase Auth用户映射到Firestore文档的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
