Hi Jonathan, all you have to do is post directly to the QuickBooks Endpoint using FormData, while using request to download the file from a Zapier file field (or URL field). Example:

const request = require('request');
const formData = new FormData();
let file = bundle.inputData.file;
let filename = bundle.inputData.filename;
let url = "https://quickbooksApI_Endpoint.com";
formData.append('file', request(file), {filename: filename});
return z.request({
    url: url,
    method: 'POST',
    body: formData
}).then((response) => {
    response.throwForStatus();
    let result = JSON.parse(response.content);                   
    return result;    
});

Let me know if that works.

Thanks for your help. 

Since I do not upload file to Quickbooks, the “url” points to my service. Using this way, I got the “hydrate” as content - this is incorrect as shown below:

 const uploadFile = async (z, bundle) => {

       const form = new FormData();

       form.append('file', request(bundle.inputData.file));

        const response = await z.request({
       url: url,
       method: 'POST',
       body: form

}

The way I was using is as follows:

...

 const { file, filename } = await utils.retrieveFile(z, bundle.inputData.file);

 form.append('file', file, filename);

…

As for utils.retrieveFile is shown below:

const retrieveFile = async (z, url) => {
  const fileObj = {};
  
  z.console.log('url: ' + url);

  try {
    const response = await z.request(url, { raw: true });
    
    z.console.log('response: ' + response);
    
    const header = response.getHeader('content-disposition');
    fileObj.filename = getFilenameFromContentDisposition(z, header);
    fileObj.file = await response.buffer();  
  } catch (e) {
    throw e;
  }
  
  z.console.log('file: ' + fileObj.file.toString('hex'));
  
  return fileObj;
}

In this case, the file is empty.

 Zapier file field (or URL field) But I could not find this type in the input fields type list.

Can you help me how to create file type?