app.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');// import passport and passport-jwt modules
var passport = require('passport');
var passportJWT = require('passport-jwt');
var session = require('express-session');
var jwt = require('jsonwebtoken');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var infoRouter = require('./routes/info');
var routeRouter = require('./routes/routes');

var cors = require('cors');

var app = express();

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

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({extended: false}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// Allow Web-request from "Other" Websites in the whitelist
let whitelist = ['http://localhost:3000', 'http://localhost:3001', 'http://*:*'];
let corsOptions = {
    origin: function (origin, callback) {
        if (whitelist.indexOf(origin) !== -1) {
            callback(null, true)
        } else {
            //callback(new Error('Not allowed by CORS'))
            callback(null, true)
        }
    }
};

app.use(cors(corsOptions));

// Cookies erlauben
app.use(session({
    cookie: {maxAge: 60000},
    secret: 'any',
    resave: false,
    saveUninitialized: false
}));

// ExtractJwt to help extract the token
let ExtractJwt = passportJWT.ExtractJwt;
// JwtStrategy which is the strategy for the authentication
let JwtStrategy = passportJWT.Strategy;
let jwtOptions = {};
jwtOptions.jwtFromRequest = ExtractJwt.fromAuthHeaderAsBearerToken();
jwtOptions.secretOrKey = "damnmysecretisnotsecret";

// lets create our strategy for web token
let strategy = new JwtStrategy(jwtOptions, function (jwt_payload, next) {
    console.log('payload received', jwt_payload);
    let user = getUser({id: jwt_payload.id});
    if (user) {
        next(null, user);
    } else {
        next(null, false);
    }
});
// use the strategy
passport.use(strategy);

//Add Passport for Login
app.use(passport.initialize());
app.use(passport.session());

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/info', infoRouter);
app.use('/route', routeRouter);

app.post('');

// 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;