how to use request module to download, and then upload file without intermediate file

Question

I want to download a image file to server first, then upload this file to other server.

If there is no download file step, it will be very simple

Answer 1

Following the request documentation, you can use

request.get(sourceUrl).pipe(request.post(targetUrl))

in this scheme, the data will flow from sourceUrl to targetUrl but will not need to be saved in a temporary file on the server.

cf https://github.com/request/request#streaming for more details.

Answer 2

This works for me:

var fs       = require('fs');
var request  = require('request');
var formData = {
  method   : 'POST',
  url      : 'http://127.0.0.1:3000',
  json     : true,
  formData : { file : request(downloadUrl) }
};

request(formData, function(err, res, body){
  if (err) throw err;
  console.log("successful");
});