app.js

var createError = require('http-errors');
const express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');

var mainRouter = require('./routes/main');
var chatRouter = require('./routes/chat');
var aboutRouter = require('./routes/about');

const app = express();


//set template engine ejs
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

//middlewares
app.use(express.static('public'));
app.use('/', mainRouter);
app.use('/chat', chatRouter);
app.use('/about', aboutRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
    next(createError(404));
  });
  
  // error handler
  app.use(function(err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};
  
    // render the error page
    res.status(err.status || 500);
    res.render('error');
  });
  
module.exports = app;