How does CSRF protection interact with AJAX and class-based views?
PICTURE THIS: A SENTENCE BECOMES TOKENS
The model does not read letters like humans. It reads these pieces, then predicts the next one.
Simple meaning
Unsafe methods need a CSRF token in a header or form field
WHY — Django MVT instead of guessing?
Why interviewers care about Django MVT:
question about Django MVT.
trade-offs, and what you would actually do on a Python project - not buzzwords.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens with tokens?
Before the model can read a sentence, it goes through these steps:
- 1Unsafe methods need a
CSRF token in a header or form field
- 2the cookie alone is
not enough for AJAX.
- 3CBVs still go through
CsrfViewMiddleware unless you mark csrf_exempt, which should be rare and paired with another authenticator.
- 4Session-authenticated SPA calls must
send X-CSRFToken from the cookie Django set.
- 5Next token
The model scores what should come next.
- 6Decode
IDs turn back into readable text.
EXAMPLE — See it in action
Let's see how a real sentence is tokenized (tokens may vary by model):
Note: Actual tokens and IDs depend on the tokenizer (e.g., GPT, Llama, etc.).
Key takeaway
Unsafe methods need a CSRF token in a header or form field the cookie alone is not enough for AJAX.