Log everything with winston + express-winston

active-log.js

var express = require('express');
var http = require('http');
var app = express();
var expressWinston = require('express-winston');
var winston = require('winston');
var fs = require('fs');

var app = express();
var server = http.createServer(app);

// Setup
function Setup(app) {
  this._app = app;
  this._logPath = 'FILE_PATH'; // Change to your logpath
  // varify that log file is present
  fs.openSync(this._logPath, 'a');

  // Capture log
  this.activityLog();
  // Build basic response
  this.inRoutes();
  // Log Error
  this.errorLog();
}

// setup winston logger
Setup.prototype.activityLog = function() {
  var that = this;
  this._app.use(expressWinston.logger({
    transports: [
      new (winston.transports.Console)({
        json: true,
        colorize: true
      }),
      new (winston.transports.File)({
        filename: that._logPath
      })
    ]
  }));
};

Setup.prototype.inRoutes = function() {
  var that = this;
  this._app.all('*', function(req, res, next) {
    // Setup response object in log
    req._routeWhitelists.res = ['response'];
    req.store = req.store || {};
    res.response = res.response || {
      status: true,
      error: {code: 0, message: ''},
      data: {}
    };
    next();
  });
};

Setup.prototype.errorLog = function() {
  var that = this;
  this._app.use(expressWinston.errorLogger({
    transports: [
      new (winston.transports.Console)({
        json: true,
        colorize: true
      }),
      new (winston.transports.File)({
        filename: that._logPath
      })
    ]
  }));
};

// call setup
new Setup(app);

app.get('/', function(req, res) {
  res.writeHeader(200, {'Content-Type' : "text/html"});
  res.write("<h1>Success</h1>");
  res.end("<p style='border:1px dotted red'>Check your log file!</p>");
});

app.get('/error', function(req, res, next) {
  return next(new Error("This is an error and it should be logged to the console"));
});

server.listen(5678, function(){
  console.log("Server is running..");
});