Flask Framework Cookbook - Third Edition

5

Web Forms with WTForms

Form handling is an integral part of any web application. There can be innumerable cases that make the presence of forms in any web app very important. Some cases may include situations where users need to log in or submit some data, or where applications might require input from users. As much as forms are important, their validation holds equal importance, if not more. Presenting this information to users in an interactive fashion adds a lot of value to the application.

There are various ways in which we can design and implement forms in a web application. As web applications have matured, form validation and communicating the correct messages to a user have become very important. Client-side validations can be implemented ...