FetcherModern HTTP Client Ecosystem

A modular, TypeScript-first HTTP client built on the native Fetch API with interceptor-powered middleware and native LLM streaming support.

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Architecture

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Native Fetch API

Built directly on the browser's native Fetch API — no polyfills, no bloat. Axios-like developer experience with a fraction of the bundle size.

Interceptor Middleware

Powerful ordered interceptor system for request, response, and error handling. Chain auth, logging, retry, and caching interceptors seamlessly.

LLM Streaming

Native Server-Sent Events (SSE) support for real-time LLM response streaming. Side-effect module patches Response.prototype with eventStream() methods.

Decorator API

TypeScript decorators for declarative API service definitions. @get, @post, @put, @delete with automatic parameter binding via @path, @query, @body.

Code Generation

CLI tool that reads OpenAPI 3.x specs and generates type-safe API clients, TypeScript interfaces, and Wow CQRS-specific clients automatically.

Modular Ecosystem

12 specialized packages — from core HTTP client to React hooks, storage, authentication, and viewer components. Pick only what you need.