main Page

@override Widget build(BuildContext context) {

return BlocProvider(create: (context)=> ShopCubit()..getHomeData(),
child: BlocConsumer<ShopCubit,ShopStates>(
    listener: (context,state){},
    builder: (context,state){
      return    MaterialApp(
      theme: lightTheme,
      darkTheme: darkTheme,
themeMode: ThemeMode.light,
home: stateWidget,
);
    },
),);

}

cubit page

HomeModel homeModel;

void getHomeData() {

emit(ShopLoadingDataState());
DioHelper.getData(url: home, token: token).then((value) {
  homeModel = HomeModel.fromJson(value.data);
  print(homeModel.toString());
  print(homeModel.status);
  emit(ShopSuccessDataState());
}).catchError((error) {
  print('Error found Here $error');
  emit(ShopErrorDataState());
});

}

DioHelper

import 'package:dio/dio.dart'; import 'package:flutter/material.dart';

class DioHelper {

static Dio dio; static init() {

dio = Dio(BaseOptions(
  baseUrl: 'https://student.valuxapps.com/api/',
  receiveDataWhenStatusError: true,
));

} static Future getData({

@required String url,
Map<String, dynamic> query,
String lang = 'en',
String token,

}) async { dio.options.headers = {

  'Content-Type': 'application/json',
  'lang': lang,
  'Authorization': token,
};
return await dio.get(url, queryParameters: query);

}

static Future postData({

@required String url,
Map<String, dynamic> query,
@required Map<String, dynamic> data,
String lang = 'en',
String token,

}) async {

dio.options.headers = {

  'Content-Type': 'application/json',
  'lang': lang,
  'Authorization': token,
};
return dio.post(
  url,
  data: data,
  queryParameters: query,
);

} }