title: Node.js how to read json data from request?
body: <p>I have a server as following:</p>
  
  <pre><code>app.post('/', function(req, res, next) {
     console.log(req);
     res.json({ message: 'pppppppppppppssssssssssssss ' });   
  });
  </code></pre>
  
  <p>The request is sent from a client as:</p>
  
  <pre><code>$.ajax({
      type: "POST",
      url: self.serverURI,
      data: JSON.stringify({ "a": "128", "b": "7" }),
      dataType: 'json',
      success: function (result) {
          console.log(result);
      },
      error: function (xhr, ajaxOptions, thrownError) {
          console.log(xhr);
      }
  });
  </code></pre>
  
  <p>so far the connection fine. </p>
  
  <p>My problem is in the server:</p>
  
  <pre><code>console.log(req);
  </code></pre>
  
  <p>where I want to read the data I sent. How can I read <code>{ "a": "128", "b": "7" }</code> from <code>req</code>?</p>