Post form with file using Node.js - node.js

Question

There is an external (I can't change it) API for creating articles. Using this API I succeed create an article this way:
curl -F "article[id]=607822" -F "article[file]=#/article_file_example/article" 'https://api/v2/articles'
How can I perform this following http request using Node.js (preferably with axios)?
The code should work for both Linux and Windows, so I can't use require('child_process').exec
I tried the following:
const formData = {
'id': 607822,
file: fs.createReadStream(filePath), //filePath is the absolute path to the file
};
axios.post('https://api/v2/articles', {article: formData});
But the API response is validation error, which means I didn't succeed to imitate the curl command.
Any suggestions?
P.S. There is also an impovement I would like to perform once I have a working solution. I have the file content, so I prefer to send it directly without creating the file + createReadStream. I tried to do that Blobing the context, but didn't succeed.

Answer 1

Looks like axios doesn't support sending multipart/form-data: https://github.com/mzabriskie/axios/issues/789
My solution was based on one of the answers for:
Nodejs POST request multipart/form-data
I used restler module.
I couldn't send my data just as:
{
article: {
'id': 607822,
file: restler.file(filePath, null, stats.size, null, "text/plain")
}
}
since it wasn't retrieved correctly by server.
So I had to transform it to:
{
'article[id]': 607822,
'article[file]': restler.file(filePath, null, stats.size, null, "text/plain")
}