app.js

const express = require('express');
const path = require('path');
const favicon = require('serve-favicon');
const logger = require('morgan');
const cookieParser = require('cookie-parser');
const bodyParser = require('body-parser');
const config = require("./config.json");
const UnitOfWork = require("./lib/UnitOfWorkFactory");

const index = require('./routes/index');

const app = express();

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

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use((req, res, next) => {
	function complete() {
		if (req.uow) {
			req.uow.complete();
		}
	}
	res.on("finish", complete);
	res.on("close", complete);
	next();
});

// uow per-request
app.use((req, res, next) => {
	UnitOfWork.create(uow => {
		req.uow = uow;
		next();
	});
});

app.use('/', index);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
	let err = new Error('Not Found');
	err.status = 404;
	next(err);
});

// 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;