[Htmlunit-user] Sending a Text data followed by BInary Data in Multi-part file upload using HTMLUnit

[Vasudevan C. <vco...@gm...>]

Hi,

   Is it possible to set a json object data followed by binary data in
Multi-part file
   upload?

   I had a sample HTML file with the option to upload the file and I tried
uploading
  the file. But the server was throwing error message as follows:

<Errors>
    <Error>
        <errorCode>INVALID_MULTIPART_REQUEST</errorCode>
        <message>Multipart message must include a non-binary part</message>
    </Error>
</Errors>

   Below is the format in which the server is expecting the multi-part data

*Service resource* -- >
https://congruent-soft--proservqa.cs31.my.salesforce.com
/services/data/v23.0/sobjects/Document/ -H "Authorization: Bearer token" -H
"Content-Type: multipart/form-data; boundary=\"boundary_string\""
--data-binary @newdocument.json



*Sample request body*

--boundary_string

Content-Disposition: form-data; name="entity_document";

Content-Type: application/json



{

    "Description" : "Sample document uploaded from SixthSense thru
integration",

    "Keywords" : "integrate,sixthsense,create",

    "FolderId" : "00l28000000WRUp",

    "Name" : "Integration document",

    "Type" : "pdf"

}



--boundary_string

Content-Type: application/pdf

Content-Disposition: form-data; name="Body";
filename="IntegrationDocument.pdf"



<Binary data goes here.>

--boundary_string--

    Is there a way to achieve the above using HTMLUnit?. I am using HTMLUnit
   2.23.

   Any suggestions/pointers/help to solve this issue is appreciated.

   Wishing you all a Very Happy New Year

Regards
 Vasu