text: var createError = require('http-errors');
  var paginate = require('express-paginate');
  var express = require('express');
  var path = require('path');
  var cookieParser = require('cookie-parser');
  var logger = require('morgan');
  
  
  
  
  var app = express();
  
  // view engine setup
  app.set('views', path.join(__dirname, 'views'));
  app.set('view engine', 'pug');
  var indexRouter = require('./routes/index');
  var booksRouter = require('./routes/books');
  
  
  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')));
  
  app.use('/', indexRouter);
  app.use('/books', booksRouter);
  app.use(paginate.middleware(10, 50));
  
  app.all(function(req, res, next) {
    // set default or minimum is 10 (as it was prior to v0.2.0)
    if (req.query.limit <= 5) req.query.limit = 5;
    next();
  });
  
  // catch 404 and forward to error handler
  app.use(function (req, res, next) {
    res.status(404).render('notfound')
  });
  
  
  module.exports = app;
  