"""
TODO: implement leaky bucket
- in-app
- [x] in-memory
- [ ] redis
- [ ] redis cluster
- [ ] Flask middleware - https://flask.palletsprojects.com/en/2.1.x/quickstart/#hooking-in-wsgi-middleware
- [ ] NGINX - https://leandromoreira.com/2019/01/25/how-to-build-a-distributed-throttling-system-with-nginx-lua-redis/
- https://www.nginx.com/blog/rate-limiting-nginx/
- [ ] AWS API Gateway
- [ ] HAProxy Stick Tables - https://www.haproxy.com/blog/introduction-to-haproxy-stick-tables
- [ ] Cloudflare (Spectrum?)
TODO: implement fixed window counter
TODO: implement sliding window log
TODO: implement sliding window counter
TODO: use session IDs instead of IP address
"""
import flask as f
from . import algos
application = f.Flask(__name__)
increment_requests_func = algos.token_bucket
@application.before_request
def before_request():
ip = f.request.remote_addr
try:
increment_requests_func(ip)
except algos.TooManyRequests:
return f.abort(429)
@application.route('/')
def home():
return 'HelloHello
'