Automated Threshold Alerts with SMS Notifications
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Proactively monitor your systems and receive immediate SMS alerts when critical thresholds are breached. This workflow automates data checks and ensures you're always informed.
About This Workflow
This n8n workflow is designed for robust system monitoring and rapid alerting. It leverages a cron job to periodically query a PostgreSQL database for specific data points that exceed a defined threshold (e.g., sensor values greater than 70). Upon detecting such an anomaly, it triggers an SMS notification via Twilio, providing immediate context about the issue, including the sensor ID and its value. To prevent repetitive alerts for the same incident, the workflow then updates the database to mark the notification as sent. This ensures timely intervention and efficient issue resolution, keeping your operations running smoothly.
Key Features
- Scheduled Monitoring: Automatically checks your database at regular intervals.
- Customizable Thresholds: Easily adjust the trigger condition for alerts.
- Real-time SMS Notifications: Receive immediate alerts directly to your phone.
- Duplicate Alert Prevention: Updates records to avoid redundant notifications.
- Database Integration: Seamlessly connects with PostgreSQL databases.
How To Use
- Schedule Checks: Configure the 'Cron' node to set the frequency of your monitoring (e.g., every 5 minutes).
- Define Data Query: In the 'Postgres' node, specify your SQL query to select data that meets your alert criteria (e.g.,
SELECT * FROM your_table WHERE your_metric > 70 AND notification = false;). - Configure SMS Alerts: In the 'Twilio' node, enter your Twilio credentials and customize the message template using expressions to include relevant data from the database query.
- Mark as Notified: Use the 'Set' node to update the database record, marking the notification as sent (e.g., setting a 'notification' field to 'true' for the corresponding record).
- Update Database: In the second 'Postgres1' node, configure it to update the 'notification' column to 'true' for the records that have already been alerted.
Apps Used
Workflow JSON
{
"id": "54d39399-f18e-4d08-850d-472be0dd0d57",
"name": "Automated Threshold Alerts with SMS Notifications",
"nodes": 19,
"category": "Operations",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: 54d39399-f18e...
About the Author
DevOps_Master_X
Infrastructure Expert
Specializing in CI/CD pipelines, Docker, and Kubernetes automations.
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