Hello,

I have a web page with a file upload widget and content of the uploaded files needs to be stored in a AWS S3 bucket for which I have a pre signed URL.

I need to build something similar to this (javascript):

https://gist.github.com/guumaster/9f18204aca2bd6c71a24#file-03-upload-js

or this (python):

import os
import requests
file_size = os.path.getsize('./AUDIO-2018-06-01-13-55-33.opus')
url =  '[PRE SIGNED URL]'
headers = {
    'Content-Length': str(file_size),
}
with open('./AUDIO-2018-06-01-13-55-33.opus', 'rb') as data:
  response = requests.put(url, data=data, headers=headers)
  print(response)
  print(response.content)

I have tested to do do the upload in a js funcion without any success.

Do you have any sugestions on how to build this? 

Thank you