What are the best practices for using Flask-WTF?

What are the best practices for using Flask-WTF?

Flask-WTF is a great extension for Flask that integrates WTForms. Best practices include using form classes, validating data, and keeping your forms modular.

Can you explain how to create a form class?

Sure! You can create a form class by subclassing FlaskForm and defining your fields as class attributes. For example:

from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField

class MyForm(FlaskForm):
    name = StringField('Name')
    submit = SubmitField('Submit')

How do I handle form validation?

You can handle validation by calling the validate_on_submit() method in your view function. It checks if the form is submitted and valid.

What about CSRF protection?

Flask-WTF automatically includes CSRF protection. Just ensure you have a secret key set in your Flask app configuration.