Nodejs scheduling question?

JavaScript
1

I am try to add feature where user add a remainder timer to a particular task and when that times comes my node server sends a email to user about his/her pending task how do I implement it in nodejs I don’t have any Idea, please help?

2

Hello @priyanshushrama709
I think you need to read about node-cron. It is a node.js task scheduler.
You can start from here

3

Great suggestion.

Store your notifications in a database (or something similar) and then have the cron job run every minute and check the db for any notifications that need to go out.

Or just fork a new process each minute (or however often you want to check) and have that process run the db check and send out the emails. I’m not a backend node guy, so ‘fork’ might not be the correct terminology here, but I think you get my point.

4

Yeah I try this,

const cron = require("node-cron");
const shell = require("shelljs");

cron.schedule("* * * * * *", () => {
    console.log("scheduler is running...");
    // console.log("shell.exec('dir').code: ", shell.exec('dir').code)
    if (shell.exec('node src/helloworld.js').code !== 0) {
        console.log("Something went wrong");
    }
})

this is my code for corn job.
But my problem is I take date to user through input field but I don’t know How do I use date to the node-corn and date will vary. mean: user add today date to a task then to another task user will add tomorrow date. In my app multiple task had multiple dates and multiple users with multiple tasks.

5

nothing interesting Nodejs scheduling question?

6

It’s cron as in ChRONological, not corn.

Anyway, cron is interval-based (repeat task every {t}), whereas I think you want time-based (do task at {t}).

There are lots of packages to help with this, node-schedule - npm seems popular (I can’t vouch for quality)

7

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