Effortlessly Schedule Emails using Node.js & Cron Jobs

A cron job is a task scheduled to run automatically at specified times or dates, defined using a specific syntax. The task is executed by the cron daemon, which runs in the background. The syntax used to specify a cron job consists of 5 fields: minute (0-59), hour (0-23), day of the month (1-31), month (1-12), and day of the week (0-7, with both 0 and 7 representing Sunday). By combining these fields, a user can specify when and how often a particular task or script should run. Cron jobs are commonly used for system maintenance, log rotation, database backup, and other tasks that need to be executed regularly.

[@deepaknegi4385]

Great job in explaining the Cron job scheduling! thank you! Please bring more videos like this 🙏

[@koding_101]

Wow really... I😆😆 was very nervous, pretty complex subject to explain.

[@geepy5708]

How do you handle server restarts? That’s where most tutorials miss it

[@livingstonedaniel982]

If you’re creating schedules based on user inputs, that means you’d have to store the user-created cron expressions in a database or maybe KV store like redis and then load them into a code module where you’ll map over them to create the cron jobs right?
How do you make sure that the cron job map in the code module is updated when a new user creates their own cron expression and it’s saved in the Db or Kv store especially given that the mapping in the code module is not sensitive to changes in the Database without the code being reloaded?

[@Bro-cc8pw]

Now, the question is - how to make it work on production for free.. I guess it should work on normal paid hosting does it? Or maybe i need something else to make it work?

[@koding_101]

It should work well on free hosting providers like Netlify or even GitHub

[@metazest]

Thank you so much. But how do I modify the content of the email if it changes on a daily basis? I have a project where my susbcribed users can receive daily email/update, and it contains an image (changes daily) from a Google Drive. Thanks

[@koding_101]

To modify the content of the email if it changes daily, you will need to update the content of the email dynamically using a script. You can write a script that fetches the image from Google Drive and updates the email content with the new image daily.
To achieve this, you can use the Google Drive API to access the image from your Google Drive, and then use JavaScript to dynamically update the email content with the new image. You can schedule the script to run daily using a cron job to send out the updated email automatically.
You may also need to consider the size of the image and ensure that it does not exceed the maximum email attachment size to avoid any email delivery issues.

[@metazest]

@@koding_101 Thank you so much!! More power to your UA-cam channel!

[@Saucehero29]

how can i run it in hostinger cron job?

[@Saucehero29]

How can i make it run with only task scheduler in windows?

[@coldplane754]

source code?

[@MustWatchVideosBySadhguru]

I have a nodejs server on AWS EC2. There could be multiple instance of same at one time. How do I handle that?