How to implement the appearance of recaptcha during flooding as in VK?

Question

Django

When flooding, for example, with messages in VK, a sign with a recaptcha appears. How can this be done using python + django?
The essence of the question is how to track what the user is dudosing))

Answer 1

Write a middleware that caches the request time and number for each session (if there is one) or for each IP address (if there is no session) and checks against this cache that the current request does not come too often.