title: formdata to string in flutter
body: <pre><code>Future&lt;String&gt; encryptedBody(String secret_key, FormData body) async {
      print(body.toString());
  }
  </code></pre>
  <p>How can display the contents of formdata?</p>
  <p>I tried to change it into a string like the code below. How to change formdata to string?. The code above shows an error <code>&quot;Instance of 'FormData'&quot;</code></p>