Module tenant_rate_limiter 

Tenant-scoped rate limiting using governor (GCRA algorithm)

Provides per-tenant rate limiting for API endpoints using the GCRA (Generic Cell Rate Algorithm) which is efficient and doesn’t require background maintenance threads.

2025 Best Practices

• Uses governor crate for efficient GCRA implementation
• Per-tenant keyed rate limiting (by header or API key)
• Configurable quotas per tier

Structs

TenantRateLimiter

Tenant-scoped rate limiter

Enums

RateLimitTier

Rate limit tier for different tenant types