title: How to send request of mongoose documents in each period of time
body: <p>I am trying to send mongoose documents in period of time. Let assume mongoose document as follows :</p>
  <pre><code>[
  { _id : X, name, surname, image,created_at},
  { _id : Y, name, surname, image,created_at},
  { _id : Z, name, surname, image,created_at},
  { _id : Q, name, surname, image,created_at}, 
  ]
  </code></pre>
  <p>What I need is if all clients send request now, I need to send documents X and Y and after 5 second I need to send Z and Q. After 5 seconds it needs to repeat to send X and Y again.</p>