Upload file not working-MIME multipart message is not complete.

[priya-dsp]

Hi @hassy, we are trying to upload pdf file in post request. As per the artillery document, we tried all the listed ways but we are getting error: Unexpected end of MIME multipart stream. MIME multipart message is not complete. How to fix this ?
latest version of artillery is being used.
we have post request where we are passing a parameter with json body and along with that we are uploading pdf file.

• post:
  url: "/documents/images"
  headers:
  Client: "{{ClientID}}"
  Authorization: "Bearer {{AccessToken}}"
  Content-Type: "multipart/form-data; boundary=6520f425-9fd5-4151-992e-996ad90ebed9"
  Host: url of environment
  Content-Length: 7435
  Expect: 100-continue
  formData:
  ImageDetails: '{json body}'
  ImageBytes:
  fromFile: '\sample.pdf'
  contentType: 'application/octet-stream'

[hassy]

hi @priya-dsp 👋 I see a few extra headers you're passing in there like Content-Type, Host, and Content-Length. Is there a reason you're doing that? You don't need to specify any of those if you use Artillery's fromFile attribute with formData.