A request to /api/1451001600000 should return { unix: 1451001600000, utc: “Fri, 25 Dec 2015 00:00:00 GMT” }
Do you see the mismatch? You seem to have inserted “timestamp” into the url. So, the microservice may work in a general sense, but it doesn’t meet the requirements of the challenge.
I was able to make that adjustment in two places and your code passed for me.
The “oh crap, I can’t believe I didn’t see that” feeling is just part of being a web developer. Get used to it. Sometimes we need an extra set of eyes. As you get better, the mistakes will get more subtle, but they never go away completely.