doctor_app_flutter/lib/providers/auth_provider.dart

import 'dart:convert';

import 'package:flutter/cupertino.dart';
import 'package:http/http.dart' as http;

import '../models/user_model.dart';

class AuthProvider with ChangeNotifier {
  Future<Map> login(UserModel userInfo) async {
    Map<String, String> requestHeaders = {
      'Content-type': 'application/json',
      'Accept': 'application/json',
    };
    const url =
        'https://hmgwebservices.com/Services/Sentry.svc/REST/MemberLogIN_New';
    try {
      final response = await http.post(url,
          headers: requestHeaders,
          body: json.encode({
            "UserID": userInfo.UserID,
            "Password": userInfo.Password,
            "ProjectID": userInfo.ProjectID,
            "LanguageID": userInfo.LanguageID,
            "IPAdress": userInfo.IPAdress,
            "VersionID": userInfo.VersionID,
            "Channel": userInfo.Channel,
            "SessionID": userInfo.SessionID
          }));
      return Future.value(json.decode(response.body));
    } catch (error) {
      print(error);
    }
  }
}