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 forms to submit data

The HTML form provides two methods for submitting data to the backend using the GET and the POST methods. In this section, we will find out how to read data submitted via these methods.


Although GET and POST are the conventional methods of form submission in HTML, using the methodOverride middleware in Express, we can submit forms using any valid HTTP method.

GET forms are submitted using the GET HTTP method and the form data is sent in the query string of the URL specified in the action attribute of the form.

POST forms are submitted using the POST HTTP method and the form data is sent in the body of the HTTP request.

POST forms come in two varieties: application/x-www-form-urlencoded and multipart/form-data. The former uses urlencoded string for sending data to the server; it is a lot like the GET query string, except the data is sent in the HTTP body. The latter uses a deliminator to send large chunks of data in the HTTP body, and is the version that is used...