// the find
guo-yu/koa-guide
koa guide in Chinese
A Chinese-language guide to Koa, the Node.js middleware framework from the Express team. It's a translation and explanation of Koa's core concepts — cascading middleware, context objects, request/response APIs — aimed at Chinese-speaking developers learning Koa. Not a library, not a tool, just documentation.
Covers the middleware cascade model clearly with annotated code examples that show execution order step by step. The onion diagram and LESS analogy are genuinely useful for developers who find the upstream/downstream mental model confusing. Explains the generator-based Koa 1 API alongside the async/await Koa 2 API, so it's useful for anyone reading older codebases.
Last updated in 2018 — the Babel section recommends transform-async-to-generator, which hasn't been necessary since Node 8, and Node 7.6 minimum is ancient. The generator function syntax (function*, yield next) that dominates most examples was deprecated in Koa 2 years before this guide was last touched. There's no content beyond the README; no actual guide pages, no examples directory, just one file. At this point it's a historical artifact, not something you'd recommend to anyone starting with Koa today.