title: Sequelize: Issue in bulkCreate while inserting an array
body: <p>I am trying to bulk insert the data coming from request body and getting trouble in inserting it into the Database.</p>
  
  <p>I've tried <code>bulkCreate(JSON.parse(req.body.myData.toString())</code> but it didn't work as expected. </p>
  
  <p>I have tried other solutions related to my problem and getting different kind of errors.</p>
  
  <p>This is <strong>myData</strong>:</p>
  
  <pre><code>myData:
  { id: 121, anotherId: 3},
  { id: 122, anotherId: 3},
  { id: 123, anotherId: 3}
  </code></pre>
  
  <p>This is my <strong>bulkCreate method</strong>:</p>
  
  <pre><code>exports.create = (req, res) =&gt; {
      console.log(JSON.parse(req.body.myData.toString()));
      // Save to PostgreSQL database
      MyData.bulkCreate([req.body.myData])
          .then(myData=&gt; {        
              // Send created MyData to client
              res.status(200).json(myData);
          }).catch(err =&gt; {
              console.log(err);
              res.status(500).json({msg: "error", details: err});
          });
  };
  </code></pre>
  
  <p>I have tried adding the <code>req.body.myData</code> as an array like:  <code>bulkCreate([req.body.myData])</code></p>
  
  <p>Kindly let me know where am I doing it wrong.</p>