final ref = FirebaseDatabase.instance.reference(); void getData() { ref .child('videos') .child('class_10') .child('chapter_1') .once() .then((DataSnapshot data) { print(data.value); print(data.key); }); } void createRecord() { ref .child('videos') .child('class_10') .child('chapter_1') .set([ {"length": "1:3333", "title": "Introduction 1.1"}, {"length": "2:30", "title": "Introduction 1.2"} ]); }
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