Book Image

Express Web Application Development

By : Hage Yaaapa
Book Image

Express Web Application Development

By: Hage Yaaapa

Overview of this book

Express is a minimal and flexible node.js web application framework, providing a robust set of features for building single and multi-page, and hybrid web applications. It provides a thin layer of features fundamental to any web application, without obscuring features that developers know and love in node.js. "Express Web Application Development" is a comprehensive guide for those looking to learn how to use the Express web framework for web application development. Starting with the initial setup of the Express web framework, "Express Web Application Development" helps you to understand the fundamentals of the framework. By the end of "Express Web Application Development", you will have acquired enough knowledge and skills to create production-ready Express apps. All of this is made possible by the incremental introduction of more advanced topics, starting from the very essentials. On the way to mastering Express for application development, we teach you the more advanced topics such as routes, views, middleware, forms, sessions, cookies and various other aspects of configuring an Express application. Jade; the recommended HTML template engine, and Stylus; the CSS pre-processor for Express, are covered in detail. Last, but definitely not least, Express Web Application Development also covers practices and setups that are required to make Express apps production-ready.
Table of Contents (15 chapters)
Express Web Application Development
About the Author
About the Reviewers

Using cookies to store data

Cookies are small bits of information that a website can store in a user's browser. They may be used for various purposes, from providing users with a customized and lively experience to surreptitiously tracking their browsing habits.

Cookies can be created by the server backend or the frontend JavaScript. They can then be read or updated by either one of them.


Install a cookie-editing extension such as Edit This Cookie in Google Chrome to interactively experiment with the cookies created in your browser.

Express provides a cookie API using the cookieParser middleware. To enable the cookie functionality in Express, load it before the router middleware:


With this middleware enabled, you can find the cookies sent by the browser in the req.cookies object, and set cookies using the res.cookie() method.


The cookieParser middleware must be loaded before the router middleware; else cookie functionality will not be enabled.

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