Spaces:
Paused
Paused
File size: 1,853 Bytes
1c2ad4f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | from collections import defaultdict
from time import perf_counter, time
from fastapi import Request, status
from src.common.utils import get_client_ip, response_error
class RateLimiter:
def __init__(self, max_requests: int = 10, window: int = 60):
self.max_requests = max_requests
self.window = window
self.requests = defaultdict(list)
def is_allowed(self, key: str) -> bool:
now = time()
self.requests[key] = [
req_time for req_time in self.requests[key] if now - req_time < self.window
]
if len(self.requests[key]) >= self.max_requests:
return False
self.requests[key].append(now)
return True
rate_limiter = RateLimiter(max_requests=20, window=60)
def register_middlewares(app, logger):
@app.middleware("http")
async def calculator_time(request: Request, call_next):
start = perf_counter()
client = get_client_ip(request)
method = request.method
path = request.url.path
logger.info(f"{method} {path} - Client: {client} - Started")
response = await call_next(request)
duration = perf_counter() - start
status = response.status_code
logger.info(
f"{method} {path} - Client: {client} - Status: {status} - Completed in {duration:.3f}s"
)
return response
@app.middleware("http")
async def rate_limit_middleware(request: Request, call_next):
client_ip = get_client_ip(request)
if not rate_limiter.is_allowed(client_ip):
logger.warning(f"Rate limit exceeded: {client_ip}")
return response_error(
"RATE_LIMIT",
"Too many requests. Try later.",
status.HTTP_429_TOO_MANY_REQUESTS,
)
return await call_next(request)
|