So I try the code from following stack overflow answer

The full code should look something like this:

class ResulstsScreen extends StatelessWidget {
  ResulstsScreen({super.key});

  List applicants = [];

  String applicantsByDate =
      "http://localhost:3000/applicants/getApplicantsByDate";

  DataRow _resultsAPI(index, data) {
    return DataRow(
      cells: <DataCell>[
        DataCell(
          Text(
            data['id'],
          ),
        ), //add name of your columns here
        DataCell(
          Text(
            data['firstName'],
          ),
        ),
        DataCell(
          Text(
            data['lastName'],
          ),
        ),
        DataCell(
          Text(
            data['createdAt'],
          ),
        )
      ],
    );
  }

  Future<List?> fetchApplicants() async {
    //var data = jsonDecode(
        //'{"applicantsByDate": [{"id": 1007,"firstName": "Andrea","lastName": "Savillon","createdAt": "2022-12-14T19:58:57.431Z"},{"id": 1006,"firstName": "Emily","lastName": "Savillon","createdAt": "2022-12-14T19:56:42.795Z"},{"id": 1005,"firstName": "Andres","lastName": "Abadie","createdAt": "2022-12-14T19:54:03.424Z"},{"id": 1004,"firstName": "Carlos","lastName": "Marroquin","createdAt": "2022-12-14T18:05:42.157Z"},{"id": 1003,"firstName": "Sara","lastName": "Savillon","createdAt": "2022-12-14T18:03:41.343Z"},{"id": 1002,"firstName": "Alexander","lastName": "Savillon","createdAt": "2022-12-14T17:28:38.909Z"},{"id": 2,"firstName": "Miguel","lastName": "Madrid","createdAt": "2022-12-13T21:59:48.593Z"},{"id": 1,"firstName": "Eder","lastName": "Savillon","createdAt": "2022-12-13T14:54:42.118Z"}]}');

     http.Response response = await http.get(Uri.parse(applicantsByDate));
      if (response.statusCode == 200) {
        var data = jsonDecode(response.body);
      
    applicants = data['applicantsByDate'];
    return applicants;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: false,
      appBar: AppBar(
        leading: Padding(
          padding: const EdgeInsets.fromLTRB(0, 0, 0, 0),
          child: Image.asset("images/Logo.png",
              fit: BoxFit.cover, height: 20.00, width: 20.00),
        ),
        leadingWidth: 130,
        title: const Text('Applicants'),
      ),
      body: SingleChildScrollView(
        child: SafeArea(
          child: Container(
            padding: const EdgeInsets.fromLTRB(10, 0, 10, 0),
            child: FutureBuilder(
              future: fetchApplicants(),
              builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
                if (snapshot.hasData) {
                  applicants = snapshot.data;
                  if (applicants.length != 0) {
                    return Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: <Widget>[
                        const SizedBox(
                          height: 30.0,
                        ),
                        Row(
                          mainAxisAlignment: MainAxisAlignment.start,
                          children: <Widget>[
                            Expanded(
                              child: Column(
                                mainAxisAlignment: MainAxisAlignment.center,
                                crossAxisAlignment: CrossAxisAlignment.stretch,
                                children: [
                                  DataTable(
                                    columns: const [
                                      DataColumn(
                                        label: Text(
                                          'ID',
                                          style: TextStyle(
                                              color: Colors.black,
                                              fontWeight: FontWeight.w600,
                                              fontSize: 18),
                                        ),
                                      ),
                                      DataColumn(
                                        label: Text(
                                          'First Name',
                                          style: TextStyle(
                                              color: Colors.black,
                                              fontWeight: FontWeight.w600,
                                              fontSize: 18),
                                        ),
                                      ),
                                      DataColumn(
                                        label: Text(
                                          'Last Name',
                                          style: TextStyle(
                                              color: Colors.black,
                                              fontWeight: FontWeight.w600,
                                              fontSize: 18),
                                        ),
                                      ),
                                      DataColumn(
                                        label: Text(
                                          'Date Applied',
                                          style: TextStyle(
                                              color: Colors.black,
                                              fontWeight: FontWeight.w600,
                                              fontSize: 18),
                                        ),
                                      ),
                                    ],
                                    rows: List.generate(
                                      applicants.length,
                                      (index) => _resultsAPI(
                                        index,
                                        applicants[index],
                                      ),
                                    ),
                                  ),
                                ],
                              ),
                            ),
                          ],
                        ),
                      ],
                    );
                  } else {
                    return Row(
                      children: const <Widget>[
                        SizedBox(
                          // ignore: sort_child_properties_last
                          child: CircularProgressIndicator(),
                          width: 30,
                          height: 30,
                        ),
                        Padding(
                          padding: EdgeInsets.all(40),
                          child: Text('No Data Found...'),
                        ),
                      ],
                    );
                  }
                } else {
                  return Row(
                    children: const <Widget>[
                      SizedBox(
                        // ignore: sort_child_properties_last
                        child: CircularProgressIndicator(),
                        width: 30,
                        height: 30,
                      ),
                      Padding(
                        padding: EdgeInsets.all(40),
                        child: Text('No Data Found...'),
                      ),
                    ],
                  );
                }
              },
            ),
          ),
        ),
      ),
    );
  }
}