title: How to get a YouTube channel ID from the channel's username which includes Cyrillic characters
body: <p>This is a YouTube channel URL that includes Cyrillic characters in the username:<br />
  <a href="https://www.youtube.com/c/%D0%9B%D1%83%D1%87%D1%88%D0%B8%D0%B5%D0%B4%D0%BE%D0%BA%D1%83%D0%BC%D0%B5%D0%BD%D1%82%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B/videos" rel="nofollow noreferrer">https://www.youtube.com/c/%D0%9B%D1%83%D1%87%D1%88%D0%B8%D0%B5%D0%B4%D0%BE%D0%BA%D1%83%D0%BC%D0%B5%D0%BD%D1%82%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B/videos</a></p>
  <p>I am trying to obtain the channel's id from the URL by calling the YouTube DATA API v3:</p>
  <pre><code>https://www.googleapis.com/youtube/v3/channels?key=[YouTubeAPIkey]&amp;forUsername=%D0%9B%D1%83%D1%87%D1%88%D0%B8%D0%B5%D0%B4%D0%BE%D0%BA%D1%83%D0%BC%D0%B5%D0%BD%D1%82%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B&amp;part=id
  </code></pre>
  <p>But the call returns no data.</p>
  <p>For reference, &quot;https://www.youtube.com/c/besogontv/videos&quot; returns a valid result:</p>
  <pre><code>https://www.googleapis.com/youtube/v3/channels?key=[YouTubeAPIkey]&amp;forUsername=besogontv
  </code></pre>
  <p>Just to see if it may work, I tried decoding the URL encoding and then re-encoding to UTF8, but it didn't make a difference.</p>
  <p>Is there some character encoding issue I'm missing?</p>