Koa Unless

Koa Unless is a utility for Koa.js applications that allows developers to conditionally skip middleware execution based on various criteria such as HTTP method, request path (string or regex), file extension, or a custom function. The current stable version, 1.0.7, was last published about 9 years ago (March 2017). Given its age, it relies on older Koa.js conventions (e.g., generator functions for middleware) and CommonJS modules. This package's primary differentiator is its simple, declarative API for conditional middleware, though modern Koa applications often achieve similar functionality with explicit `if` statements or newer conditional middleware libraries. The project appears to be abandoned, with the last commit also around 9 years ago, indicating no active development or compatibility updates for newer Koa versions or Node.js features like ESM.