Script to send messages to alexa

send_message.py

import requests
import sys

# Configuration, you need to capture this from a request made by the Amazon Alexa App
# Host, conversation_id and sender appear to be static
host = ''
conversation_id = ''
sender = ''
# ubid_main and at_main change over time, so you will need to recapture them from time to time
ubid_main = ''
at_main = ''

def send_message(message):
    # The app sends more cookies, but this is the minimum you need to send
    cookies = {
        'session_id': '', # can be any value?
        'ubid-main': ubid_main,
        'x-main': '', # can be any value?
        'at-main': at_main,
    }

    url = 'https://{host}/users/{sender}/conversations/{conversation_id}/messages'.format(host=host, sender=sender, conversation_id=conversation_id)

    # The app sends more data, but this is the minimum you need to send
    payload = [{
      "conversationId": conversation_id,
      "payload":{"text": message},
      "type": "message/text",
      "sender": sender,
    }]
    
    response = requests.post(url, cookies=cookies, json=payload)
    if response.status_code != 200:
        print("Status code: {0}".format(response.status_code))
        print(response.text)
    else:
        data = response.json()
        data["conversationId"] = "redacted"

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Specify a message please")
        exit(1)
    send_message(' '.join(sys.argv[1:]))