throttle-kit 0.4.0

Rate limiting for Rust — GCRA algorithm with in-memory and Redis backends, Tower layer integration
Documentation 
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/// Errors returned by the rate limiter.
#[derive(Debug, thiserror::Error)]
pub enum RateLimitError {
    /// The request was rejected — rate limit exceeded.
    #[error("rate limit exceeded")]
    RateLimited,

    /// Backend-specific error (e.g. Redis connection failure).
    #[error("rate limit backend error: {0}")]
    BackendError(String),
}