Push notification using Cron Job Service in ASP.Net Core

Hi,

Cron job service for push notification in asp.net core

I have to implement a task where i need to send notification to the user for their subscription expiration prior 2 days before.

For that i have save user subscription data in table where start date and end date is save.

When end date going to expire i need to send a notification to the user.

How can i implement in ASP.Net Core API.