Koa Middleware Converter

koa-convert is a utility package designed to bridge compatibility gaps between major versions of the Koa.js web framework. It primarily converts legacy Koa 0.x and 1.x generator-based middleware into modern Koa 2.x promise-based middleware. Conversely, it can also convert modern promise middleware back to legacy generator format, which is useful for enabling newer middleware to run on older Koa 0.x or 1.x applications. The current stable version is 2.0.0, released in 2017. As such, the package is no longer actively developed, and its release cadence has ceased. Its key differentiator is its ability to facilitate incremental migration for existing Koa applications, allowing mixed middleware patterns to coexist. While still functional for its specific purpose, its overall utility for new projects has significantly diminished as Koa 2.x has been the standard for many years.