What is FetchClient?

FetchClient is a tiny library that makes working with fetch delightful. It provides:

• Typed JSON helpers: getJSON, postJSON, etc.
• A FetchClient class with middleware support
• Caching with TTL and programmatic invalidation
• Rate limiting per domain
• Timeouts and AbortSignal support
• Helpful error handling with Problem Details

Use just the functions for small scripts, or the client for full apps.