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      <title>Timestamp Microservice</title>
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        <h2>API Project: Timestamp Microservice</h2>
        <h3>User Stories:</h3>
        <ol class="user-stories">
          
          <li>The API endpoint is <code>GET [project_url]/api/timestamp/:date_string?</code></li>
          <li>A date string is valid if can be successfully parsed by <code>new Date(date_string)</code>.<br>
          Note that the unix timestamp needs to be an <strong>integer</strong> (not a string) specifying <strong>milliseconds</strong>.<br> 
          In our test we will use date strings compliant with ISO-8601 (e.g. <code>"2016-11-20"</code>) because this will ensure an UTC timestamp.</li>
          <li>If the date string is <strong>empty</strong> it should be equivalent to trigger <code>new Date()</code>, i.e. the service uses the current timestamp.</li>
          <li>If the date string is <strong>valid</strong> the api returns a JSON having the structure<br><code>{"unix": &lt;date.getTime()&gt;, "utc" : &lt;date.toUTCString()&gt; }</code><br>
            e.g. <code>{"unix": 1479663089000 ,"utc": "Sun, 20 Nov 2016 17:31:29 GMT"}</code></li>
          <li>If the date string is <strong>invalid</strong> the api returns a JSON having the structure <br>
              <code>{"error" : "Invalid Date" }</code>.
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        <h3>Example Usage:</h3>
        <ul>
          <li><a href="api/timestamp/2015-12-25">[project url]/api/timestamp/2015-12-25</a></li>
          <li><a href="api/timestamp/1451001600000">[project url]/api/timestamp/1451001600000</a></li>
        </ul>

        <h3>Example Output:</h3>
        <p>
          <code>{"unix":1451001600000, "utc":"Fri, 25 Dec 2015 00:00:00 GMT"}</code>
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