server.js

var express = require('express');
var path = require('path');
var logger = require('morgan');
var compression = require('compression');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var expressValidator = require('express-validator');
var dotenv = require('dotenv');
var React = require('react');
var ReactDOM = require('react-dom/server');
var Router = require('react-router');
var Provider = require('react-redux').Provider;
var mongoose = require('mongoose');
var sass = require('node-sass-middleware');
var webpack = require('webpack');
var config = require('./webpack.config');

// Load environment variables from .env file
dotenv.load();

// ES6 Transpiler
require('babel-core/register');
require('babel-polyfill');

// Controllers
var contactController = require('./controllers/contact');
var bookController = require('./controllers/bookController');

// React and Server-Side Rendering
var routes = require('./app/routes');
var configureStore = require('./app/store/configureStore').default;

var app = express();

///////////////////////////

var compiler = webpack(config);

mongoose.connect(process.env.MONGODB);
mongoose.connection.on('error', function() {
  console.log('MongoDB Connection Error. Please make sure that MongoDB is running.');
  process.exit(1);
});
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.set('port', process.env.PORT || 5000);
app.use(compression());
app.use(sass({ src: path.join(__dirname, 'public'), dest: path.join(__dirname, 'public') }));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(expressValidator());
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

if (app.get('env') === 'development') {
  app.use(require('webpack-dev-middleware')(compiler, {
    noInfo: true,
    publicPath: config.output.publicPath
  }));
  app.use(require('webpack-hot-middleware')(compiler));
}




app.post('/booklist', bookController.getbook);



app.post('/', bookController.getbookhome);

app.post('/contact', contactController.contactPost);

app.post('/add_book/saveBook', bookController.savebook);

app.get("/booklist/getOneBook/:id", bookController.getOneBook);

app.post("/booklist/edit/editBook", bookController.editBook);

app.get('/booklist/deleteBook/:id', bookController.DeleteOneBook);

app.post("/booklist/sell/final", bookController.sellBook);



// React server rendering
app.use(function(req, res) {
  var initialState = {
    messages: {}
  };

  var store = configureStore(initialState);

  Router.match({ routes: routes.default(store), location: req.url }, function(err, redirectLocation, renderProps) {
    if (err) {
      res.status(500).send(err.message);
    } else if (redirectLocation) {
      res.status(302).redirect(redirectLocation.pathname + redirectLocation.search);
    } else if (renderProps) {
      var html = ReactDOM.renderToString(React.createElement(Provider, { store: store },
        React.createElement(Router.RouterContext, renderProps)
      ));
      res.render('layout', {
        html: html,
        initialState: store.getState()
      });
    } else {
      res.sendStatus(404);
    }
  });
});

// Production error handler
if (app.get('env') === 'production') {
  app.use(function(err, req, res, next) {
    console.error(err.stack);
    res.sendStatus(err.status || 500);
  });
}

app.listen(app.get('port'), function() {
  console.log('Express server listening on port ' + app.get('port'));
});

module.exports = app;