main.js

var express = require('express');
var fs = require('fs');
var path = require('path');
var helmet = require('helmet');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
const debug = require('debug')('app');


var routes = require('./routes/index');
var blackboard = require('./routes/blackboard');
var questions = require('./routes/questions');

try {
  fs.mkdirSync('./db');
} catch(e) {
}

const JSONdb = require('simple-json-db');
const db = new JSONdb('./db/db.json');
const uuid = require('uuid');


var app = express();

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

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(helmet());
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')));

// Make our db accessible to our router
app.use(function(req,res,next){
    req.db = db;
    next();
});

app.use('/', routes);
app.use('/blackboard', blackboard);
app.use('/api/v1/questions', questions);
app.get('/api/v1/swagger.json', (req, res) => {
    res.json(require('./swagger.json'));
});

// 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 handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    app.use(function (err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: err
        });
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function (err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
        message: err.message,
        error: {}
    });
});


module.exports = app;