How do you solve the error KeyError: 'A secret key is required to use CSRF.' when using a wtform in flask application?

Question

I have been trying to build a web app using flask and wtforms and a firebase database, but I keep getting the error message \"KeyError: \'A secret key is required to use CSRF.\'

Answer 1

you need to add a SECRET_KEY in the application configuration to take advantage of csrf protection and provide a WRF CSRF SECRET_KEY otherwise your secret key will be used instead

app.config.update(dict(
    SECRET_KEY="powerful secretkey",
    WTF_CSRF_SECRET_KEY="a csrf secret key"
))