How to properly schedule tasks in Node.JS?

Question

JavaScript

Hello.
There is a project on the MEAN stack.
It is necessary to organize a notification system according to the schedule, sending notifications for certain users. The problem is that tasks need to be performed at a certain time, but not every day, but once every N days, the number N is stored in the database.
I found ready-made solutions in the form of a node-schedule for the notifications themselves, but did not find an approximate solution for my task (with the ability to configure which days to run).
The most primitive solution that I came up with is a node schedule, which, let's say, runs once a day at 00:00. It reads from the database the latest launch date and a pass (in how many days it needs to be launched). If the difference in days = recorded, then it starts, sends notifications to users, and then overwrites the last run date.
What do you think about such a decision?
Question. Perhaps someone came across a similar solution. How to implement such a launch?
Question2. Is it worth sculpting a scheduled launch in the "main" backend, or is it worth making a separate microservice on the same node that will "pull" the route of the main backend according to the schedule and send out notifications?
Thanks in advance

Answer 1

Question. Perhaps someone came across a similar solution. How to implement such a launch?

You suggested quite a good solution, if you already have mongo, then you can use the agenda module instead of node-schedule, and get distributed job processing in addition.
It is better to separate into a separate process