API Rate Limiting Strategies

Implement rate limiting for APIs to prevent abuse

APISecurityRate LimitingBackend
by Community
.antigravity
# API Rate Limiting

## Rate Limiting Algorithms
- Token bucket algorithm
- Sliding window log
- Fixed window counters
- Leaky bucket pattern

## Implementation
- Use Redis for distributed limiting
- Set appropriate limits
- Return proper headers
- Implement user-specific limits

## Response Headers
- X-RateLimit-Limit
- X-RateLimit-Remaining
- X-RateLimit-Reset
- Retry-After on 429

## Best Practices
- Rate limit by IP and user
- Implement exponential backoff
- Monitor rate limit hits
- Provide clear error messages