bluebot/core/workers/pipeline/messageHandlers/backtestHandler.js

A bitcoin trading bot for auto trading at various exchanges

// listen to all messages and internally queue
// all candles and trades, when done report them
// all back at once.

module.exports = done => {
  var trades = [];
  var roundtrips = []
  var candles = [];
  var report = false;

  return {
    message: message => {

      if(message.type === 'candle')
        candles.push(message.candle);

      else if(message.type === 'trade')
        trades.push(message.trade);

      else if(message.type === 'roundtrip')
        roundtrips.push(message.roundtrip);

      else if(message.type === 'report')
        report = message.report;

      else if(message.log)
        console.log(message.log);
    },
    exit: status => {
      if(status !== 0)
        done('Child process has died.');
      else
        done(null, {
          trades: trades,
          candles: candles,
          report: report,
          roundtrips: roundtrips
        });
    }
  }
}