title: Are Callable Cloud Functions better than HTTP functions?
body: <p>With the latest <a href="https://firebase.google.com/support/releases#march_20_2018" rel="noreferrer">Firebase Update</a> callable functions were introduced. My question is whether <a href="https://firebase.google.com/docs/functions/callable" rel="noreferrer">this new way</a> is faster than the <a href="https://firebase.google.com/docs/functions/http-events" rel="noreferrer">"old" http triggers</a> and if it is more secure.</p>
  
  <p>I have no expertise in this field, but I think the HTTP vs HTTPS might make a difference.</p>
  
  <p>This is interesting to me because if the <em>callable functions</em> are faster, they have that advantage, but their disadvantage lies in the nature of flexibility: They cannot be reached by other sources.</p>
  
  <p>If the <em>callable functions</em> have no advantages in terms of speed or security I do not see a reason to switch it up.</p>