title: save the list of object to cosmos DB (Document DB or mongo DB) from Azure functions
body: <p>We all know that we can save one document at a time in cosmos DB using Azure functions (using out parameter or using return) like: </p>
  
  <pre><code> object outputDocument = new { id = Guid.NewGuid().ToString(), 
                                     customObjList= objList 
                               };
  </code></pre>
  
  <p>where objList is a list of custom object.
  Now the above outputDocument will return one json Document and the data in DB will be saved in the below format. </p>
  
  <pre><code>{
      "id" : "....",
      "customObjList" :[ 
          {
              "_id" : "81afbe1a-3da0-4143-9dc6-0b3bf5252e0d",
              ...
          }, 
          {
              "_id" : "2af7e1ac-15ca-424e-8af1-d3e5a2cca8de",
              ....
          },
          .....
  ]}
  </code></pre>
  
  <p><strong>But what I want is something like below list of documents to be saved directly from Azure functions</strong></p>
  
  <pre><code> /* 1 */
      {
       "_id" : "81afbe1a-3da0-4143-9dc6-0b3bf5252e0d",
       ...
      }
      /* 2 */
      {
        "_id" : "2af7e1ac-15ca-424e-8af1-d3e5a2cca8de",
         ....
      }
  </code></pre>
  
  <p>[To me the requirement is to fetch the data from rss feed and save it to cosmos DB, which I am first reading it and storing the data in a list of object but unable to save those list of object independently in cosmos DB]</p>