Read data from Firestore reference - flutter

Question

i have data stucture like:
/Admin/Dashboard/MRmZh9mixve1CV3M0EI8wfyDnb82/20220607/Anonymous/Entry
i want to read all that data that is under
/Admin/Dashboard/MRmZh9mixve1CV3M0EI8wfyDnb82
i tried this buts it returns empty
String collection = "/Admin/Dashboard/MRmZh9mixve1CV3M0EI8wfyDnb82";
await FirebaseFirestore.instance.collection(collection).get().then(
(res) => print("Successfully completed ${res}"),
onError: (e) => print("Error completing: $e"),
);
so basically i want lo read all the collections in it that has further documents in each collection

Answer 1

I could use this way to extract data from specific documents and collections.
final _firestore = FirebaseFirestore.instance;
void getMessages() async{
final docRef = await _firestore.collection('1234#123.com').doc('123123').collection('record').get();
for (var Ref in docRef.docs) {
print(Ref.data());
}
}
void getMessages44() async{
final docRef = await _firestore.collection('Admin').doc('Dashboard').collection('MRmZh9mixve1CV3M0EI8wfyDnb82').get();
for (var Ref in docRef.docs) {
print(Ref.data());
}
}
void test() async {
print("test");
// List<dynamic> userList = [];
QuerySnapshot querySnapshot = await _firestore.collection('1234#123.com').doc('123123').collection('record').where('Item', isEqualTo:"sdfsf").get();
// userList = querySnapshot.docs.map((e) => dynamic.User.fromMap(e.data())).toList();
final allData = querySnapshot.docs.map((doc) => doc.data()).toList();
// final allData = querySnapshot.docs.map((doc) => doc.get('fieldName')).toList();
print(allData);
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Record'),
leading: null,
actions: <Widget>[
IconButton(
icon: const Icon(Icons.add),
onPressed: (){
Navigator.pushNamed(context, creationCategory.id);
},
),
IconButton(
icon: const Icon(Icons.settings),
onPressed: () async {
// await getData();
// getMessages();
// getMessages();
getMessages44();
test();
// getMessages33();
// Navigator.push(
// context,
// MaterialPageRoute(builder: (context) => const ItemDetailsScrrent()),
// );
},
),
],
),
body: SafeArea(
child: Container(
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text('Trahs Collection',
style: const TextStyle(
color: Colors.black38, fontWeight: FontWeight.bold, fontSize: 40),
),
ItemStream(),
],
),
),
),
);
}