# 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": "+14155550100"
    })
    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))


# Set payload information and authorization credentials
# Read more at https://developer.vonage.com/en/api/voice#createCall
def createCall():
    url = "https://api.nexmo.com/v1/calls/"
    
    payload = json.dumps({
       "to": [
          {
             "type": "phone",
             "number": "14155550100"
          }
       ],
       "answer_url": [
          "https://example.com/answer"
       ]
    })
    
    headers = {
      'Authorization': 'Bearer <Vonage JWT>',
      'Content-Type': 'application/json'
    }
    
    response = requests.request("POST", url, headers=headers, data=payload)
    data = response.json()
    
    # Return JSON Object
    return data
    
# Makes the pre-call push.
token = get_token()
precall = push_precall(token)
vonageCall = createCall()
print("Call Auth Info: " + precall)
print("Twilio Call Info: "+ vonageCall)

fouser@FO-user-pc Python % python3 CallAuth.py
Call Auth Info:
{
  "body": {
    "message": "Ok"
  }
}
Vonage Call Info:
{
   "uuid": "63f61863-4a51-4f6b-86e1-46edebcf9356",
   "status": "completed",
   "direction": "outbound",
   "conversation_uuid": "CON-f972836a-550f-45fa-956c-12a2ab5b7d22"
}