kramarz/python-redis-rate-limit

Python Rate Limiter implemented based on Redis INCR, EXPIRE, EVALSHA and EVAL.

python-redis-rate-limit

This lib offers an abstraction of a Rate Limit algorithm implemented on top of Redis >= 2.6.0.

Example: 10 requests per second

>>> from redis_rate_limit import RateLimit, TooManyRequests
>>> try:
>>>   with RateLimit(resource='users_list', client='192.168.0.10', max_requests=10):
>>>     return '200 OK'
>>> except TooManyRequests:
>>>   return '429 Too Many Requests'
>>>

Example: 600 requests per minute

>>> from redis_rate_limit import RateLimit, TooManyRequests
>>> try:
>>>   with RateLimit(resource='users_list', client='192.168.0.10', max_requests=600, expire=60):
>>>     return '200 OK'
>>> except TooManyRequests:
>>>   return '429 Too Many Requests'
>>>

Example: 100 requests per hour

>>> from redis_rate_limit import RateLimit, TooManyRequests
>>> try:
>>>   with RateLimit(resource='users_list', client='192.168.0.10', max_requests=100, expire=3600):
>>>     return '200 OK'
>>> except TooManyRequests:
>>>   return '429 Too Many Requests'
>>>

You can also setup factory to use later. Example:

>>> from redis_rate_limit import RateLimiter, TooManyRequests
>>> limiter = RateLimiter(resource='users_list', max_requests=100, expire=3600)
>>> try:
>>>   with limiter.limit(client='192.168.0.10'):
>>>     return '200 OK'
>>> except TooManyRequests:
>>>   return '429 Too Many Requests'
>>>