briareus/lib/service/middleware/response-logger.js

Briareus assists with Feature Branch deploys to ECS

'use strict'

const _ = require('lodash');

module.exports = function (service) {
  return function (req, res, next) {
    // Clone original request because Express modifies uri as it passes req object
    // to controllers. eg /healthcheck becomes / after processing.
    let originalReq = _.clone(req);

    res.on('finish', function () {
      let data = _.clone(req.context.logData);
      data.res = res;
      data.req = originalReq;
      data.responseTime = (new Date().getTime() - req.context.startedAt.getTime()) + 'ms'

      service.log.info(data, 'Response');
    });

    next();
  };
};