gistfile1.txt

// STEP 1:
// I use a tool like Dropzone to get the JavaScript file object but I mean you
// can do whatever your heart desires. you're going to listen to the drop event.

// STEP 2:
// Have a method thats like a callback
_handleFilesDropped(files) {
  if (files.length) {
    const file = files[0];
    return uploadFile(file);
  }
}

// STEP(3): Then for each! do something like this:
uploadFile(file) {
  const data = new FormData();
  data.append("file", file, file.name);
  
  // Make your $http request.
}