Why is node.js not sending the file?

Question

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let form = new FormData()
            form.append('photo', fs.createReadStream('tmp.jpg'))
            await fetch(server.upload_url, {
                method: 'POST',
                body: form,
                headers: { 'Content-Type': 'multipart/form-data' }
            })

I want to upload a photo to the server in order to use the photos.saveMessagesPhoto method, but when uploading photos, the photos field is empty, photos are not sent

Answer 1

What fetch is used? Node.js needs a separate package, because by regular fetch - browser