one/services/base-token-service.js

const MyKit = require("../kit/MyKit");
const Config = require("../config/config");

class BaseTokenService {}

BaseTokenService.Start = async function() {
  while (true) {
    try {
      Config.baseToken.contractModel.methods.balanceOf(PrivateConfig.address).call((err, result) => {
        if (result) {
          let balance = MyKit._N(parseFloat(result) / (10 ** Config.baseToken.decimals), 4)
          const prevBalance = Config.baseToken.balance
          Config.baseToken.balance = balance

          if ((prevBalance || prevBalance === 0) && balance !== prevBalance) {
            console.log(`[${Config.baseToken.symbol}余额变更]${prevBalance}->${balance}, 交易失败(BNB连续减少但BUSD不变化)次数: 0.\n`)
            Config.refreshBNBTimes = 0
          } else if (!prevBalance && prevBalance !== 0) {
            console.log(`[${Config.baseToken.symbol}余额初始化]${balance}.`)
          }
        }
      })
    } catch (e) {
      console.log(e)
    }

    await MyKit.sleep(1000)
  }
}

module.exports = BaseTokenService