Gewinnen Sie den Kampf gegen die Abwanderung von Benutzern mit Django-Push-Benachrichtigungen

from django.db import models
from django.utils.translation import gettext_lazy as _

class Notification(models.Model):
    title = models.CharField(max_length=255, verbose_name=_('Notification title'))
    body = models.TextField(verbose_name=_('Notification body'))
    image = models.ImageField(upload_to='notifications/', null=True, blank=True)
    created_date = models.DateTimeField(auto_now_add=True)  # Add this field

    def __str__(self):
        return self.title

    class Meta:
        ordering = ("-created_date",)  # Now created_date exists
        verbose_name = _('Notification')

#notifcations.py

import os
from google.oauth2 import service_account
from google.auth.transport.requests import Request
import requests

def refresh_access_token(service_account_file):
    credentials = service_account.Credentials.from_service_account_file(
        service_account_file,
        scopes=["https://www.googleapis.com/auth/cloud-platform"],
    )
    credentials.refresh(Request())
    access_token = credentials.token
    return access_token

from django.db.models.signals import post_save
from django.dispatch import receiver
import requests

# Import the Notification model and the refresh_access_token function
from my_app.models import Notification  # Change 'my_app' to your actual app name
from my_app.notifications import refresh_access_token  # Update the path if necessary
@receiver(post_save, sender=Notification)
def send_notification_on_creation(instance, created, **kwargs):
    if created:
        service_account_file = '/home/rv/Documents/rv/push_notification/core/my_app/test-project.json'
        tkn = refresh_access_token(service_account_file)
        print('tkn',tkn)
        endpoint = "https://fcm.googleapis.com/v1/projects/test-project-595ae/messages:send"
        access_token = tkn
        headers = {
            "Authorization": f"Bearer {access_token}",
            "Content-Type": "application/json",
        }

        data = {
            "message": {
                "token":"dnTB_cv9TZ25jsOkkQSS0x:APA91bEghK69zhqpTi2B5hPFtX0mpLSzdSQswrGEKl60PrUQDgy9RTIc_f9pjfxoyuUU-w8xjwk0WO1KtvbwF3bYFlQ21HWv-JueS-Fu7azhUsjgULDN41TTTiqONsqLsbIqS9_xKsUv",
                "notification": {
                    "title": instance.title,
                    "body": instance.body,
                }
            }
        }

        response = requests.post(endpoint, json=data, headers=headers)

        if response.status_code == 200:
            print("Push notification successfully sent!")
        else:
            print(f"Failed to send push notification. Status code: {response.status_code}")
            print(response.text)

from django.contrib import admin

from .models import *

admin.site.register(Notification)