Connect Rate Limit Middleware

connect-ratelimit is a Connect middleware designed to limit the number of requests per client IP address or hostname to a Node.js server. As of its last known update, it is at version 0.0.7, indicating a very early stage of development and a likely abandoned status, with no new releases since August 2014. It distinguishes clients using `req.headers['x-forwarded-for']` or `req.connection.remoteAddress` and supports flexible rate limiting rules through configurable 'normal', 'whitelist', and 'blacklist' categories. Uniquely, it offers an `end` option to either prematurely terminate the middleware chain with a 'Rate limit exceeded' message or allow the chain to continue, augmenting the `response` object with rate limit details for custom handling. This package is built for the `connect` framework, which is less commonly used directly in modern Node.js web applications, often replaced by frameworks like Express. Its core differentiation lies in its direct integration with `connect`'s simple middleware pattern and its customizable category-based limiting, though newer, more robust alternatives exist for current Node.js ecosystems.