The error means a permission is denied. Make sure you include lines in your Realtime Database to make sure the system can read and write data, something like this:
{
/* Visit https://firebase.google.com/docs/database/security to learn more about security rules. */
"rules": {
".read": true,
".write": true
}
}
first please read my question i have already said i did this before but then i changed the rules.
i am asking how i can authenticate myself in my app as the owner of my firebase account so that only i can update the data
You need to create an authenticated user in your firebase project.
In the firebase console, go to Authentication. Enable email/password. Add a user. You will then need to authenticate using either an extension or web component.