i want to access child node data using parent node name flutter firebase data base

Question

{
  
  "centers": {
    "DCSE": {
      "centerName": "DC"
    },
    "SE": {
      "centerName": "ccc"
    },
  }
}

stdRef =FirebaseDatabase.instance.ref().child('centers').child('centerName'); i would like to access centerName without knowing its nodes names DCSE and SE as its possible to do? i want to access centerName with parent name cneter instead of centers.DCSE.centerName

child('centers').child('centerName') directly????

Answer 1

If you don't know which center to show the name of, all you can do is show the name of all centers. That'd be something like:

final centersRef = FirebaseDatabase.instance.ref("centers");

centersRef.onValue.listen((event) {
  for (final centerSnapshot in event.snapshot.children) {
    print('${centerSnapshot.child("centerName").value}');
  }
}, onError: (error) {
  // Error.
});

Also see the Firebase documentation on listening for value events .