Fetch Smartly

Fetch Smartly is a zero-dependency, isomorphic HTTP client that wraps the native `fetch` API to provide production-grade resilience and intelligence for Node.js 18+, browsers, Cloudflare Workers, Deno, and Bun environments. It addresses common pain points of raw `fetch` by incorporating intelligent retry mechanisms with exponential backoff and jitter, respecting `Retry-After` headers, and automatically avoiding retries for 4xx client errors. The library offers a comprehensive typed error hierarchy, including `NetworkError`, `TimeoutError`, `HttpError`, and `RateLimitError`, enabling granular error handling via `instanceof` checks. Key features also include an automatic circuit breaker for failure isolation, request deduplication for identical concurrent GET/HEAD requests, and an offline queue with pluggable storage for replaying failed requests. Currently at version 1.0.2, the package is actively maintained with recent minor updates, distinguishing itself through its lightweight nature, strict TypeScript support, and robust, built-in resilience features.