gretchen

Uses TypeScript discriminated unions to precisely type both success and error responses, ensuring compile-time safety and eliminating runtime surprises.

Offers automatic retries with customizable attempts, status codes, methods, and exponential backoff, including respect for the Retry-After header for resilient requests.

Designed to be lightweight, with a tiny footprint that won't bloat your application, as evidenced by its small bundle size on bundlephobia.

Provides before and after hooks for intercepting requests and responses, enabling easy logging, header modification, or error tracking without cluttering business logic.