title: How to limit upload file size in express.js
body: <p>i got this error says</p>
  
  <pre><code>error:request entity too large 
  </code></pre>
  
  <p>when uploading a video about 30MB, </p>
  
  <p>here is the setting code </p>
  
  <pre><code>app.use(express.bodyParser({
      uploadDir:'./Temp',
      maxFieldsSize:'2 * 1024 * 1024 * 1024 ',
  }));
  </code></pre>
  
  <p>am not sure how to set the maxFieldsSize property, need some help!!!</p>