Introduction

A production-ready solution for safe & simple HTTP fetching built with EffectTS. Designed with great developer experience in mind.

• ✅ Production-ready — Used in production by Ematiq since February 2025
• ✅ Immutable & Clonable — Follows functional programming principles
• ✅ Safe by default — Prevents common pitfalls with HTTP fetching
• ✅ Cross-platform — Works in all modern browsers, Bun, Deno, and Node.js
• ✅ Effect-based — Seamless integration with the Effect ecosystem
• ✅ Testable — Easy mocking and testing with service-based architecture
• ✅ Dual API — Familiar syntax from EffectTS
• ✅ Simple — It is just fetch! No more complex concepts to learn.

Did you know?

FxFetch is not another HTTP client. Is a just fetch but for EffectTS ecosystem.

„And what about @effect/platform HttpApi?“

@effect/platform HttpApi is an unstable package nowadays. Some methods are still implemented using Effect.die. Most importantly, however, it is an HTTP client. This makes it mostly useful for backend and full-stack applications. In many real-world scenarios, however, your server is not under your direct control (e.g. other teams, third-party services, other language edge functions, etc.).

FxFetch is designed to be used in like a browser fetch but with type-safety, immutability, and ergonomics in mind.