unleash.unleash/src/lib/middleware/response-time.js

'use strict';

const responseTime = require('response-time');
const { REQUEST_TIME } = require('../events');

module.exports = function(config) {
    return responseTime((req, res, time) => {
        const { statusCode } = res;

        const pathname = req.route ? req.baseUrl + req.route.path : '(hidden)';

        const timingInfo = {
            path: pathname,
            method: req.method,
            statusCode,
            time,
        };
        config.eventBus.emit(REQUEST_TIME, timingInfo);
    });
};