runkoa

Runkoa is a conceptual web development framework designed to run Koa-style middleware in Node.js environments. It emphasizes a small, predictable core, fast middleware orchestration, and compatibility with middleware patterns popularized by Koa.

At its core, Runkoa uses a per-request context object and a stack of asynchronous middleware functions. Each middleware receives a context and a next function; calling await next() transfers control to the next middleware in the stack, with execution resumes after the next middleware completes. The framework includes centralized error handling and a mechanism for composing middleware into a coherent request pipeline, enabling clean separation of concerns.

Runkoa aims to be modular and extensible while remaining lean. It envisions a minimal router, optional utilities for body parsing and logging, and a plug-in system that allows developers to add functionality without inflating the core. Its design emphasizes interoperability with existing Koa-style middleware so developers can adopt it gradually without rewiring established code.

Typical usage in the Runkoa concept involves creating an application instance, registering middleware with a method such as app.use(), and wiring an entry point to process incoming requests. Middleware components can handle routing, authentication, data validation, and response shaping, all while sharing a consistent context object and error-handling strategy.

As a concept, Runkoa has appeared in discussions about middleware orchestration and framework ergonomics, but there is no widely recognized official implementation or release. It serves as a reference point for evaluating middleware design decisions and interoperability with Koa-compatible code. See also: Koa, Node.js, middleware design.