How to fetch data from firebase realtime database in flutter? - firebase

Question

I'm building an app in Flutter in which I have data stored in the Firebase Realtime Database. I want to fetch those data in my app.
Now, Because of breaking changes made few months ago I'm unable to find new articles or video which might help but all I find are old ones so if anyone here can help me?
variable for the list
final dbRef = FirebaseDatabase.instance.reference().child("workshops");
now for showing the data I'm trying like this
return FutureBuilder(
future: dbRef.once(),
builder: (context,AsyncSnapshot<DataSnapshot> snapshot){
if(snapshot.hasData){
workshopList.clear();
Map<dynamic, dynamic> values = snapshot.data.value;
values.forEach((key,values){
workshopList.add(values);
});
}
return ListView.builder(
shrinkWrap: true,
itemCount: workshopList.length,
itemBuilder: (BuildContext context, index){
return Card(
child: Center(
child: Column(
children: [
Text("name "+ workshopList[index].workshopName)
],
),
),
);
},
);
}
);

Answer 1

For declaring list I was doing like this
List<Workshop> worskshopList = [];
but what worked for me was
List<Map<dynamic,dynamic>> workshopList = [];
And now for showing the data I am using
workshopList[index].workshopName
now problem with this is that I am not referencing database's workshopname but my model class' workshop name so I am getting nowhere.
now what worked for me was
workshopList[index]["workshopname"]
now from the old list I can't use like list[index][""] it will give an error like "[]" is not defined for the list.