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Auth & security at scale

OAuth2, JWT, IAM patterns, secrets rotation, and least-privilege service auth.

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Auth & security at scale easy

How to Revoke Tokens with a Blacklist Set in Python

A minimal TokenBlacklist class using a Python set to revoke, batch-revoke, check, and remove expired tokens for simple token invalidation.

jwt blacklist authentication
Python 
import time

class TokenBlacklist:
    def __init__(self):
        self.blacklisted_tokens = set()

    def revoke(self, token):
        self.blacklisted_tokens.add(token)
        print(f"Token {token} revoked. Blacklist size: {len(self.blacklisted_tokens)}")

    def revoke_batch(self, tokens):
        before = len(s…
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