#CallAuth.py

import json
import requests
import os
    
def get_token():
    url = "https://api.firstorion.com/v1/auth"
    
    headers = {
      'X-SERVICE': 'auth',
      'content-type': 'application/json',
      'X-API-KEY': 'your-api-key',
      'X-SECRET-KEY': 'your-secret-key'
    }
    
    response = requests.request("POST", url, headers=headers)
    data = response.json()
    return data['token']

    
def push_precall(token):
    url = "https://api.firstorion.com/exchange/v1/calls/push"
    
    payload = json.dumps({
      "aNumber": "+15555555555",
      "bNumber": "+15554444444"
    })
    headers = {
      'Authorization': token,
      'Content-Type': 'application/json'
    }
    
    response = requests.request("POST", url, headers=headers, data=payload)
    data = response.json()
    
    value = {
        'statusCode': response.status_code,
        'body': data['body']['message']
    }
    
    # Return JSON Object
    return json.loads(json.dumps(value))


# Replace this Create Call function based on your platform
# Download the helper library from https://www.twilio.com/docs/python/install
# Set environment variables for your credentials
# Read more at http://twil.io/secure
import os
from twilio.rest import Client
def createCall():

    account_sid = "your_account_sid"
    auth_token = "your_auth_token"
    client = Client(account_sid, auth_token)

    call = client.calls.create(
      url="http://demo.twilio.com/docs/voice.xml",
      to="+15555555555",
      from_="+15554444444"
    )

    print(call.sid)

# Makes the pre-call push.
token = get_token()
precall = push_precall(token)
createTwilioCall = createCall()
print("Call Auth Info: " + precall)
print("Twilio Call Info: "+ createTwilioCall)

fouser@FO-user-pc Python % python3 CallAuth.py
Call Auth Info:
{
  "body": {
    "message": "Ok"
  }
}
Twilio Call Info:
{
  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
  ...
  ...
}