flutter_provider_demo/lib/utils/http_util.dart

import 'package:dio/dio.dart';

/// Description: http util
/// Time       : 09/04/2023 Monday
/// Author     : liuyuqi.gov@msn.cn
class HttpUtil {
  static const String BASE_URL = "http://";
  static const int CONNECT_TIMEOUT = 10000;
  static const int RECEIVE_TIMEOUT = 3000;

  static HttpUtil? _instance;
  static Dio? _dio;

  static HttpUtil getInstance() {
    _instance ??= HttpUtil();
    return _instance!;
  }

  Future<Map<String, dynamic>> get(String url,
      {Map<String, dynamic>? params}) async {
    Response response = await _dio!.get(url, queryParameters: params);
    return response.data;
  }

  Future<Map<String, dynamic>> post(String url,
      {Map<String, dynamic>? params}) async {
    Response response = await _dio!.post(url, data: params);
    return response.data;
  }
}

class ErrorCode {
  int code;
  String msg;

  ErrorCode(this.code, this.msg);

  ErrorCode.fromJson({this.code = 0, this.msg = ""});

  Map<String, dynamic> toJson() {
    return {
      'code': code,
      'msg': msg,
    };
  }
}