No data writing in firebase

Discuss
#1

My Firebase real-time database rules are
“.read”: true
“.write”: “auth != null”
I have used Firebase authentication for login and sign up. After sign up or login store value, but no data is written in the database. How to fix this problem

#2

You have to give more info then that

#3
#4

Sorry for the late reply but it will help koders who are facing the same issue,

#5