Sending sms that are scheduled in django using Twilio and Celery

middleware.py

import json
import logging
import os

from django.conf import settings
from django.views import GenericView
from django.core.exceptions import ImproperlyConfigured
from dotenv import load_dotenv
from twilio.rest import Client

logger = logging.getLogger(__name__)

dotenv_path = settings.PROJECT_PATH / '.env'
logger.debug(f'Reading .env file at: {dotenv_path}')
load_dotenv(dotenv_path=dotenv_path)


MESSAGE = """[This is a test] ALERT! It appears the server is having issues.
Exception: {0}"""

NOT_CONFIGURED_MESSAGE = (
    "Required enviroment variables "
    "TWILIO_ACCOUNT_SID or TWILIO_AUTH_TOKEN or TWILIO_NUMBER missing."
)


def load_twilio_config():
    logger.debug('Loading Twilio configuration')

    twilio_account_sid = os.getenv('TWILIO_ACCOUNT_SID')
    twilio_auth_token = os.getenv('TWILIO_AUTH_TOKEN')
    twilio_number = os.getenv('TWILIO_NUMBER')

    if not all([twilio_account_sid, twilio_auth_token, twilio_number]):
        raise ImproperlyConfigured(NOT_CONFIGURED_MESSAGE)

    return (twilio_number, twilio_account_sid, twilio_auth_token)


class MessageClient:
    def __init__(self):
        logger.debug('Initializing messaging client')

        (
            twilio_number,
            twilio_account_sid,
            twilio_auth_token,
        ) = load_twilio_config()

        self.twilio_number = twilio_number
        self.twilio_client = Client(twilio_account_sid, twilio_auth_token)

        logger.debug('Twilio client initialized')

    def send_message(self, body, to):
        self.twilio_client.messages.create(
            body=body,
            to=to,
            from_=self.twilio_number,
        )


class TwilioNotificationsMiddleware:
    def __init__(self, get_response,message,phone,delivery_time,delivery_day):
        logger.debug('Initializing Twilio notifications middleware')

        self.client = MessageClient()
        self.get_response = get_response
        
        self.message = message
        self.phone = phone
        self.delivery_time = delivery_time
        self.delivery_day = delivery_day

        logger.debug('Twilio notifications middleware initialized')

    def __call__(self, request):
        return self.get_response(request)

    def process_sms(self, request):
        settings.HOUR = self.delivery_time
        settings.DAY = self.delivery_day
      
        self.client.send_message(self.message,self.phone,)

        logger.info('Message has been sent successfully')
        return None