server.js

// server.js
// where your node app starts

// init project
var express = require('express');
var app = express();
// enable CORS (https://en.wikipedia.org/wiki/Cross-origin_resource_sharing)
// so that your API is remotely testable by FCC 
var cors = require('cors');
app.use(cors({optionsSuccessStatus: 200}));  // some legacy browsers choke on 204

// http://expressjs.com/en/starter/static-files.html
app.use(express.static('public'));

// http://expressjs.com/en/starter/basic-routing.html
app.get("/", function (req, res) {
  res.sendFile(__dirname + '/views/index.html');
});


// your first API endpoint... 
app.get("/api/hello", function (req, res) {
  res.json({greeting: 'hello API'});
});

app.get('/api/:timestamp', function (req, res) {
  let date = new Date(+req.params.timestamp);
  if(!(date instanceof Date && isFinite(date))){
  date =  new Date(req.params.timestamp);
  }
  console.log(req.params.timestamp)
  if(!(date instanceof Date && isFinite(date)))
  res.send({ error : "Invalid Date" })
  
  res.send({unix:date.getTime(),utc:date.toUTCString()})
})
app.get('/api', function (req, res) {
  let date = new Date();
  res.send({unix:date.getTime(),utc:date.toUTCString()})
})


// listen for requests :)
var listener = app.listen(process.env.PORT??8071, function () {
  console.log('Your app is listening on port ' + listener.address().port);
});