ClaudeGate's rate limiter uses Go's golang.org/x/time/rate package for token bucket implementation, integrating it into a personal API gateway named ClaudeGate. It includes a per-IP map to track requests, a cleanup goroutine to manage memory, and logic to accurately identify the client IP address from HTTP headers. The middleware is specifically targeted at POST requests to expensive endpoints while allowing other methods to bypass rate limiting. Tests ensure proper functionality with minimal overhead. This design avoids over-engineering by focusing on current requirements without anticipating future changes.
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