winston and buffers

server.js

var winston = require('winston');
require('winston-papertrail').Papertrail

const winstonConsole = new winston.transports.Console()
const winstonPapertrail = new winston.transports.Papertrail({
  host: 'logs5.papertrailapp.com',
  port: xxxx,
  flushOnClose: true,
})

const logger = new winston.Logger({
  transports: [winstonConsole, winstonPapertrail],
});

function blockCpuFor(ms,callback) {
	var start = new Date().getTime();
	var result = 0
	while(true) {
		result += Math.random() * Math.random();
		time_so_far = new Date().getTime() - start
		if (time_so_far >  ms){
			callback()
			return;
		}
	}
}

function displayProgress() {
  const message = `It's ${new Date()}`
  logger.info(message)
}


function test_buffer(i){

	blockCpuFor(2000,displayProgress)
	return i
};

//create an array of length 30
var foo = [];
for (var i = 1; i <= 5; i++) {
   foo.push(i);
}

var bar = foo.map(test_buffer)