text: const env = process.env.REACT_APP_ENV;
  
  const Config = {
    version: 'v1.0.0',
    chain: {
      privateKey: '01',
      fullHost: 'https://api.trongrid.io'
    },
    trongrid: {
      host: 'https://api.trongrid.io',
      key: 'xxxxxx'
    },
    service: {},
    contract: {
      usdt: 'TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t'
    },
    defaultDecimal: 6,
    tronLinkTime: 8,
    justSwap: 'https://justswap.org/',
    tronscanUrl: 'https://tronscan.io/#'
  };
  
  let devConfig = {};
  if (env === 'test') {
    devConfig = {
      chain: {
        privateKey: '01',
        fullHost: 'https://api.nileex.io'
      },
      service: {},
      contract: {
        usdt: 'TXYZopYRdj2D9XRtbG411XZZ3kM5VkAeBf'
      },
      justSwap: 'https://justswap.org/',
      tronscanUrl: 'https://nile.tronscan.io/#'
    };
  }
  export default Object.assign(Config, devConfig);
  