text: var createError = require('http-errors');
  var express = require('express');
  var path = require('path');
  var favicon = require('serve-favicon');
  var logger = require('morgan');
  
  var apiRouter = require('./routes/pins').router;
  
  var app = express();
  
  var mongoose = require('mongoose');
  mongoose
    .set('useFindAndModify', false)
    .connect('mongodb://localhost/pins', { promiseLibrary: require('bluebird'), useNewUrlParser: true })
    .then(() => console.log('connection successful'))
    .catch(err => console.error(err));
  
  app.use(logger('dev'));
  app.use(express.json());
  app.use(express.urlencoded({ extended: false }));
  app.use(express.static(path.join(__dirname, 'dist/pin')));
  app.use('/', express.static(path.join(__dirname, 'dist/pin')));
  app.use('/api', apiRouter);
  
  // 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.sendStatus(err.status);
  });
  
  module.exports = app;
  