title: Postman: POST request of nested JSON via form-data not working (while via raw-data ok)
body: <p>I want to POST the following JSON-object via Postman:</p>
  <pre><code>{
      &quot;title&quot;: &quot;test_title&quot;,
      &quot;date&quot;: &quot;2021-12-31&quot;,
      &quot;attachments&quot;: [
          {
              &quot;name&quot;: &quot;test_attachment&quot;
          }
      ]
  }
  </code></pre>
  <p>This works perfectly fine, when using Postman's raw input form for the request-body: I get a &quot;201 Created&quot;-response back.</p>
  <p>However, when using the form-data to POST the data, I get the error <code>&quot;Invalid data. Expected a dictionary, but got str.&quot;</code> (see also screenshot below) What am I doing wrong here? I tried all kind of other versions to enter the attachment-key:value pair but nothing worked so far <a href="https://i.stack.imgur.com/nhC4Q.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nhC4Q.png" alt="enter image description here" /></a></p>