How should I allow cron expression input?

1. How do I verify a cron expression?
2. How do I create a cron trigger?

How do I verify a cron expression?

Cron is driven by a crontab (cron table) file, a configuration file that specifies shell commands to run periodically on a given schedule. On linux systems you can run the crontab -e command to edit.

How do I create a cron trigger?

Navigate to Events > Cron Triggers > Create in your Hasura Console. In the form opened, fill out the fields defined above: You can use the link next to the Cron Schedule field to help build a cron expression using crontab guru, or use the Frequently used crons dropdown as a shortcut.