text: 'use strict';
  
  // ---------------------------------------------------------------------------
  
  const huobipro = require ('./huobipro.js');
  
  // ---------------------------------------------------------------------------
  
  module.exports = class hadax extends huobipro {
      describe () {
          return this.deepExtend (super.describe (), {
              'id': 'hadax',
              'name': 'HADAX',
              'countries': 'CN',
              'hostname': 'api.hadax.com',
              'urls': {
                  'logo': 'https://user-images.githubusercontent.com/1294454/38059952-4756c49e-32f1-11e8-90b9-45c1eccba9cd.jpg',
                  'api': 'https://api.hadax.com',
                  'www': 'https://www.hadax.com',
                  'doc': 'https://github.com/huobiapi/API_Docs/wiki',
              },
              'has': {
                  'fetchCurrencies': false,
              },
              'api': {
                  'public': {
                      'get': [
                          'hadax/common/symbols', // 查询系统支持的所有交易对
                          'hadax/common/currencys', // 查询系统支持的所有币种
                          'common/timestamp', // 查询系统当前时间
                          'hadax/settings/currencys', // ?language=en-US
                      ],
                  },
              },
              'options': {
                  'fetchMarketsMethod': 'publicGetHadaxCommonSymbols',
              },
          });
      }
  };
  