On the left my database schema, on the right is my react-native code.
I followed this documentation to get started with Realtime Database for Android.
I am trying to get the value "Lesson" from key "Category". none of the commands I tried work. How I can get Lesson value? I tried test.parent but I got the correct location in my database but I want the values.
thanks!
Documentation is your Friend!
The answer to your question is in the document you attached! If you scroll a bit down there's a section One-time read
To read the value once, call the once method on a reference:
import database from '@react-native-firebase/database';
database()
.ref('/users/123')
.once('value')
.then(snapshot => {
console.log('User data: ', snapshot.val());
});
So just replace the ref path '/users/123' with your path 'Lesson 1/1 Introduction/Category'
You can also listen for changes in the document in real-time. Check out Real-Time Changes
import database from '@react-native-firebase/database';
database()
.ref('/users/123')
.on('value', snapshot => {
console.log('User data: ', snapshot.val());
});
1 Introduction level, you should set the ref path as Level 1. If you want to read from the DB only 1 time, then use the first method, when promise resolves, set it onto any state variable