⚙️ Monitor a file for changes and send an alert
⚡ 3,487 views · ⚙️ DevOps & CI/CD
Description
This flow monitors a file for changes of its content. If changed, an alert is sent out and you receive it as push, SMS or voice call on SIGNL4.
User cases:
- Log-file monitoring
- Monitoring of production data
- Integration with third-party systems via file interface
- Etc.
Sample file “alert-data.json”:
{
"Body": "Alert in building A2.",
"Done": false,
"eventId": "2518088743722201372_4ee5617b-2731-4d38-8e16-e4148b8fb8a0"
}Body: The alert text to be sent. Done: If false this is a new alert. If true this indicated the alert has been closed. eventId: Last SIGNL4 event ID written by SIGNL4.
This flow can be easily adapted for database monitoring as well.
🔗 Nodes Used
Cron, Function, Read Binary File, Start, Write Binary File, Convert to/from binary data
📥 Import
Download workflow.json and import into n8n:
Workflow menu → Import from File