Posting FormData object to external API from Workflow

[dhfw]

Hello,

I would like to know if anyone can help me find how to send a file to an external API.

My external API has a "Content-Type = multipart/form-data" requirement.

As far as i know the only way to do this in javascript normally is to declare a FormData object, append values and file to it and send it through XmlHTTPRequest using Post method.

Problem is, the FormData object is not defined in Adobe Campaign Classic JS so I'm stuck. 

Thank you.

[dhfw · Accepted solution]

Managed to find solution using using the stackoverflow links :
https://stackoverflow.com/questions/47080869/how-to-manually-create-multipart-form-data

https://stackoverflow.com/questions/7529159/javascript-isnt-uploading-binary-data