'use strict'; const uuid = require('uuid'); module.exports = function initLogger ({ logger }) { return function initLoggerMiddleware (req, res, next) { const id = req.get('X-Request-Id') || uuid.v4(); res.locals.logger = logger.child({ id }); res.locals.logger.info({ request: req }); res.on('finish', () => res.locals.logger.info({ response: res })); next(); }; };