What are the best practices for using forms in Flask?

What are the best practices for using forms in Flask?

When using forms in Flask, it's important to validate user input, use WTForms for easier form handling, and ensure CSRF protection.

Can you explain how to implement WTForms in my Flask app?

Sure! First, install WTForms using pip. Then, create a form class that inherits from Flask-WTF's FlaskForm and define your fields.

What about handling form submissions?

You can handle form submissions by checking if the form is submitted and validated in your route. Use form.validate_on_submit() to check.

How do I add custom validation to my forms?

You can add custom validation by defining a method in your form class and using the @validates decorator from WTForms.