title: How to store URL value in Mongoose Schema?
body: <p>I am uploading the images from an IOS application to Firebase which returns to me the metadata including the URL of type <code>URL</code>.</p>
  
  <p>Should I store it of type <code>String</code> in the database like below code? or there is specific type for <code>URL</code>s?</p>
  
  <pre><code>var schema = new Schema({
    downloadURL: { type: String, createdDate: Date.now }
  })
  </code></pre>