This n8n workflow automates the process of monitoring a specific web service’s status and sends an SMS alert if the service is down. It is triggered at regular intervals and uses an HTTP request to check the service’s health. If the check indicates a failure (status code not 200), the workflow sends an SMS notification via Twilio, alerting the responsible team of the outage.
The workflow begins with a Schedule Trigger that runs every specified interval (in minutes). It then performs an HTTP request to the target service, checking its status. The response’s status code is evaluated with an ‘If’ node; if the status code equals 200 (service is healthy), the workflow ends silently. If the response indicates failure (any status other than 200), the workflow proceeds to trigger a Twilio SMS node, which sends a “Service Down” message to a specified phone number.
This automation is practical for maintaining uptime in web services, ensuring that issues are swiftly communicated to the team even outside of regular monitoring hours. It helps reduce downtime by providing immediate alerts about service failures without manual intervention.
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