gistfile1.txt

var request = require('request'),
    _ = require('lodash'),
    fs = require('fs');

var url = 'https://na78.salesforce.com/services/data/v39.0/sobjects/Attachment',
    token = '00Do0000000Kwd1!ARwAQGh714_EED_D.HqUk_3R2aZaJrEqpeZi2MnHChCWXmU6IxSRs6RN8SBbcX5He_Bt4rUz8EHDo5.ncCioQBd0p_vfmqzm',
    CRLF = '\r\n';


var sfRequest = request({
  method: 'POST',
  uri: url,
  headers: {
    'Authorization': 'Bearer 00Do0000000Kwd1!ARwAQGh714_EED_D.HqUk_3R2aZaJrEqpeZi2MnHChCWXmU6IxSRs6RN8SBbcX5He_Bt4rUz8EHDo5.ncCioQBd0p_vfmqzm'
  },
  formData: {
    Body: {
      value: request.get('https://scontent-lga3-1.xx.fbcdn.net/v/t31.0-8/26172294_1641426532570090_5572853299467280679_o.jpg?oh=f47698132d57015b14aa4fd9bc103a5f&oe=5B01621B'),
      options: {
        'filename': 'carl.jpg'
      }
    },
    entity_document: {
      value: JSON.stringify({
        name: "carl.jpg",
        ParentId: '00Q1N00000YKQWy',
        Description: 'Test Upload'
      }),
      options: {
        contentType: 'application/json'
      }
    }
  }
}, function (error, response, body) {
  if (error) {
    return console.error('upload failed:', error);
  }
  console.log('Upload successful!  Server responded with:', body);
});

console.log(sfRequest._form._streams);