title: cURL send JSON as x-www-form-urlencoded
body: <p>I want to post the following JSON:</p>
  
  <pre><code>{
     "cities": {
         "chicago": 123,
         "boston": 245
     }
  }
  </code></pre>
  
  <p>Using <code>curl</code> as <code>x-www-form-urlencoded</code> without using a .json file. I cannot figure out how to build the <code>curl -F ...</code> </p>