W / SyncTree：侦听/ users失败：DatabaseError：权限被拒绝

Question

I am getting:

"W/SyncTree: Listen at /users failed: DatabaseError: Permission denied error"

In Android Studio when running my app. Following is my Firebase rule:

service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if true;
    }
  }
}

Please help me with the required change or update in code.

Answer 1

To solve this, please change the following line of code:

allow read, write: if true;

to

allow read, write;

You can allow users to read from your database only when you decide that those informations can be public. If you have sensitive information (ie user informations), it's mandatory to secure your database and allow only the users you that you decide that can read that informations. So if you decide later to add authentication, then it's a must to secure your database. That's the same regarding writting purposes.