It generates log output in JSON by default -

{ "responseTime": "4ms", "method": "GET", "url": "/api", "ip": "127.0.01", "body": {}, "params": {}, "query": {}, "httpVersion": "1.1", "statusCode": 200, "timeStamp": "23/Apr/2017:20:46:01 +0000", "contentType": "text/html; charset=utf-8", "contentLength": "4", "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36", "referrer": null, "userAnalytics": { "browser": "Chrome", "browserVersion": "60.0.3112.90", "os": "Mac OS", "osVersion": "10.11.6", "country": { "name": "India", "isoCode": "IN" } }, "headers": { "host": "localhost:8000", "connection": "keep-alive", "accept-encoding": "gzip, deflate, sdch, br", "accept-language": "en-US,en;q=0.8,la;q=0.6" }, "cookies": { "userId": "zasd-167279192-asknbke-0684" } }