title: How to read data of multiple user id in a single request in cloud functions on firebase
body: <p>I am using Firebase Database for my Android application and cloud functions. As Firebase stores data in JSON format. Each user has some unique id which assigns to user.</p>
  
  <p>I want to know if there is any way to get multiple users data on a single request. If you see below code it will fetch data only of passed user id.</p>
  
  <pre><code>db
      .ref("/users/" + request.query.userId)
      .once("value")
      .then(function(snapshot) {
  </code></pre>
  
  <p>I have 10 user ids of which I want to get data on a single request in nodejs. What is the way to get this ?</p>