app.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const session = require('express-session');
const flash = require('connect-flash');
const msal = require('@azure/msal-node');

var favicon = require('serve-favicon');

var bodyParser = require('body-parser');

require('dotenv').config();


var index = require('./routes/index');
var users = require('./routes/users');
var auth = require('./routes/auth');


var app = express();

// <MsalInitSnippet>
// In-memory storage of logged-in users
// For demo purposes only, production apps should store
// this in a reliable storage
app.locals.users = {};

// MSAL config
const msalConfig = {
  auth: {
    clientId: process.env.OAUTH_APP_ID,
    authority: process.env.OAUTH_AUTHORITY,
    clientSecret: process.env.OAUTH_APP_SECRET
  },
  system: {
    loggerOptions: {
      loggerCallback(loglevel, message, containsPii) {
        console.log(message);
      },
      piiLoggingEnabled: false,
      logLevel: msal.LogLevel.Verbose,
    }
  }
};

// Create msal application object
app.locals.msalClient = new msal.ConfidentialClientApplication(msalConfig);

app.use(session({
  secret: 'your_secret_value_here',
  resave: false,
  saveUninitialized: false,
  unset: 'destroy'
}));

app.use(flash());
// view engine setup

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(function (req, res, next) {
  // Read any flashed errors and save
  // in the response locals
  res.locals.error = req.flash('error_msg');

  // Check for simple error string and
  // convert to layout's expected format
  var errs = req.flash('error');
  for (var i in errs) {
    res.locals.error.push({ message: 'An error occurred', debug: errs[i] });
  }

  // Check for an authenticated user and load
  // into response locals
  if (req.session.userId) {
    res.locals.user = app.locals.users[req.session.userId];
  }

  next();
});
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'hbs');
var hbs = require('hbs');

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('/', index);
app.use('/users', users);
app.use('/auth', auth);

app.engine('html', require('express-art-template'))
app.use('/public/', express.static('./public/'))
// catch 404 and forward to error handler
app.use(function (req, res, next) {
  var 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;