Function rate

src/middleware/rate.js:17–37

(req, res, next)

 * @returns {void}
 */
export function rate (req, res, next) {
	const config = req.server.rate;

	if (config.enabled === false || req.unprotect) {
		next();
	} else {
		const results = req.server.rateLimit(req, config.override),
			good = results.shift();

		if (good) {
			for (const [idx, i] of rateHeaders.entries()) {
				res.header(i, results[idx]);
			}

			next();
		} else {
			res.header(RETRY_AFTER, config.reset);
			res.error(config.status || INT_429);
		}
	}
}