Reliability

Keep your services available and responsive under load and failure.

• Circuit Breaker — Prevent cascading failures with configurable thresholds, half-open recovery, and custom fallback strategies.
• Rate Limiter — Throttle request rates with configurable limits, sliding windows, and pluggable backends, protect your services from overload.
• Resilience — Timeout, fallback, retry, with configurable policies and backoffs.

Existing middlewares

Beyond the components themselves, every component provides middleware factories for composing component behavior around your own functions. Wrap a function with use() or method with enhance() and apply any of the following middlewares.

• withCircuitBreakerFactory — Wraps function calls with a circuit breaker.
• withRateLimiterFactory — Wraps function calls with a rate limiter.
• fallback — Returns a fallback value when the wrapped function fails.
• retry — Retries the wrapped function up to a maximum number of attempts.
• retryInterval — Retries the wrapped function at a fixed interval until it succeeds or the time budget is exhausted.
• timeout — Rejects the wrapped function if it does not complete within a duration.