Unable to populate form-data

I’m a newbie to this library, so apologies if this is too basic of a question. I am trying to populate an instance of FormData before sending it to another server using axios like so:

form.parse(req, async (err, fields, files) => {
    if (err) {
        errorHandler(err);
        return;
    }

    const formData = new FormData();
    Object.keys(files).forEach((key) => {
       console.log(key, files[key])            // files are logged correctly.
        formData.append(key, files[key]);
    });

    console.log(formData.datasize);

    try {
        const resp = await axios({
            url: `http://my-url.com`,
            method,
            params: req.query,
            data: formData,
            headers: formData.getHeaders()
        });
        res.send(resp.data);
    } catch (e) {
        res.sendStatus(500).end();
    }
    return;
});

The problem here is that, the console.log statement above is printing ‘0’ which would mean that the form data is still empty even after calling append. Why is this happening? My diagnosis is that the above is happening because the form-data package cannot make sense of the format in which the files are returned by formidable. How do I do this?

[GrosSacASac]

files from form.parse are not files, but representation of files.

To make this work use fs.createReadStream(file.path) like @Romick2005 suggested or use examples/log-file-content-to-console.js and replace console.log statements with Buffer.concat to build the entire buffer into memory and then send those buffers

[Romick2005]

Have tried add files using readStream? Smth like: formData.append(‘file’, fs.createReadStream(file.path));