This workflow automatically queries a Postgres database to find outlier readings for which SMS notifications have not been sent.
This is Workflow 2 in the blog tutorial Database activity monitoring and alerting.
Prerequisites
- A Postgres database set up and credentials
- A Twilio account and credentials
Nodes
- Cron node triggers the workflow every minute, so the database is queried at regular intervals.
- Postgres nodes extract values from, and update values in the database.
- Twilio node sends an alert SMS about the outlier reading to a specified phone number.
- Set node sets the notification value to true.