title: Google Calendar API - no longer authorized for reads?
body: <p>So, using the Calendar API to pull all events from a publicly available Google Calendar.</p>
  <p>This were working fine until this morning.</p>
  <p>As I'm not updating or doing any data alteration, we've implemented an API key to access read only data as follows:</p>
  <pre><code>https://www.googleapis.com/calendar/v3/calendars/[calendar ID]/events?timeZone=EDT&amp;timeMin=2020-06-30T04:00:00.000Z&amp;maxResults=6&amp;singleEvents=true&amp;orderBy=startTime&amp;key=[API key]
  </code></pre>
  <p>Yesterday, pulled fine, today returns:</p>
  <blockquote>
  <p>code: 401
  message: invalid credentials</p>
  </blockquote>
  <p>Any thoughts on this? It's affecting several implementations of this calendar code (different keys, domains, etc) but with the same basic methodology.</p>
  <p>I have not implemented the gapi client javascript library, may begin looking into that now.</p>