How to convert to JSON Format Realtime Database Flutter-CodePudding

I managed to get one data from Firebase Realtime Database. This time I want to turn it into JSON format and get two data at least. Below is the code

my Database Reference `

DatabaseReference ref =
        FirebaseDatabase.instance.ref().child('UsersData/$userDataUID/test/int');

my code `

StreamBuilder(
              stream: ref.onValue,
              builder: (context, snapshot) {
                if (snapshot.hasData) {
                  debugPrint(snapshot.data?.snapshot.value.toString());   
                }
                return const CircularProgressIndicator();
              })),

my Firebase console

I believe I have to convert it into Maps? I have no idea how to begin with

CodePudding user response：

Try with

DatabaseReference ref =
        FirebaseDatabase.instance.ref().child('UsersData/$userDataUID/test');

This will return a map with those fields.

And use on widget like

 if (snapshot.hasData) {
     final map =  snapshot.data?.snapshot.value as Map?;
     return Text("int: ${map?["int"]}  voltage: ${map?["voltage"]}"); }

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