Type ‘String’ is not a subtype of type ‘int’ of ‘index’

Step 1: Check your Flutter project API URL

 body: new FutureBuilder<List>(
          future: authServices.getUserProfile(),
          builder: (context, snapshot) {
            if (snapshot.hasError) print(snapshot.error);
            print("yaha tak data");
            print(snapshot.data);
            if (snapshot.hasData) {
              // Only display the first item in the list
              var data = snapshot.data[0];
              // return Text(data.toString());
              return ItemList(list: snapshot.data);
            } else {
              return new Center(
                child: new CircularProgressIndicator(),
              );
            }
          },
        ));

Step 2: Check your Flutter project AuthServices page

Future<List> getUserProfile() async {
    final prefs = await SharedPreferences.getInstance();
    final key = 'token';
    final value = prefs.get(key);
    final pemail = 'email';
    final pvalue = prefs.get(pemail);
     print('dharmu ka data');
   print(pvalue);

    var url = Uri.parse(baseURL + 'get-user-profile/' + pvalue);

    http.Response response = await http.get(url, headers: {
      'Accept': 'application/json',
      'Authorization': 'Bearer $value'
    });

    print(response.statusCode);
    var getData = json.decode(response.body);
     print('dharmu ka data aa raha hai');
      print('yaha auth ka data');
    print(getData);
    return getData['data'];
  }

Step 3: Go to the base URL with the API

This is right Code Here

    public function getUserProfile(Request $request, $email){
        Log::info('In DcotorController->getAllDoctors... user data aa raha hau');
        $doctors =  User::where('email', $email)->get();
        $data = [
                     "status"=> "OK",
                     "data"=> $doctors,
                 ];
                 Log::info('Response ja raha h yaha se bhi ja raha hai');
        return response()->json($data, 200);
        Log::info('Response ja raha h aa raha haai dharmu ka user');
    }