title: Mongoose - ObjectID as key?
body: <p>I would like to have an object("ingredients" in example) in my mongoose model, where the keys are ObjectIDs, and their values are numbers. Is it possible to do so? How should I define my mongoose schema? You can find an example below.</p>
  
  <p>Example JSON:</p>
  
  <pre><code>  {
      "_id": ""5a2539b41c574006c46f1a07",
      "name": "xyz",
      "ingredients": {
          "5a23f5e6159f5c3438c75971": 50,
          "5a23f60b159f5c3438c75972": 50,
          "5a255b04c9d9c40ac8927dd5": 50
      }
    }
  </code></pre>
  
  <p>Thank you for your help in advance. </p>