[Solved] Find the bug in this fixed window rate limiter code:window_size = 30limit = 3window_start = int(time.time()) // window_size * window_sizecount = 0if time.time() < window_start + window_size:... | Rest API

Rest API - Rate Limiting and Throttling

Find the bug in this fixed window rate limiter code:

window_size = 30
limit = 3
window_start = int(time.time()) // window_size * window_size
count = 0
if time.time() < window_start + window_size:
    count += 1
else:
    count = 0

AWindow start calculation is incorrect

BTime comparison uses less than instead of less or equal

CLimit is not checked anywhere

DCount resets after window ends, but current request not counted

Step-by-Step Solution

Solution:

Step 1: Check count reset logic
When window ends, count resets to zero but current request is not counted.
Step 2: Identify fix
After reset, count should be set to 1 to count current request.
Final Answer:
Count resets after window ends, but current request not counted -> Option D
Quick Check:
Reset count must include current request [OK]

Quick Trick: Reset count to 1, not 0, for new window request [OK]

Common Mistakes:

Forgetting to count current request after reset
Incorrect window start calculation
Not checking limit at all

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Find the bug in this fixed window rate limiter code:

Step 1: Check count reset logic

Step 2: Identify fix

Final Answer:

Quick Check:

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