Server & network monitoring alerts via WhatsApp using HetrixTools
This workflow integrates [HetrixTools](https://hetrixtools.com/) with WhatsApp via the GOWA API to automate notifications about server monitoring events. It distinguishes between **Uptime Monitoring** and **Resource Usage Monitoring** events, formats the message accordingly, and sends it to a WhatsApp number using the GOWA WhatsApp REST API.
It's especially useful for DevOps, sysadmins, or teams who need real-time server alerts delivered via WhatsApp.
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## ⚙️ **Setup Instructions**
1. **Set up HetrixTools:**
* Create a HetrixTools account at [https://hetrixtools.com/register](https://hetrixtools.com/register)
* Create your **Uptime Monitors** and/or enable **Resource Usage Monitoring** for your servers.
* Go to your HetrixTools contact settings and add the **n8n Webhook URL** provided by the workflow.
* Make sure to select this contact in your monitor’s alert settings.
2. **Configure n8n Webhook:**
* Set the Webhook node to HTTP method: `POST`
* Ensure it is accessible via a public URL (you can use n8n Cloud, reverse proxy, or tunnel like `ngrok` for testing).
3. **Customize WhatsApp Message:**
* The workflow includes a conditional branch to check whether the event is a Resource Usage alert or an Uptime alert.
* Each branch contains editable text nodes for customizing the WhatsApp message content.
4. **Set up GOWA WhatsApp API:**
* Make sure your GOWA instance is running and accessible.
* Create necessary credentials (API key, base URL, etc.).
* In n8n, add the credentials and fill in the **sendChatPresence** and **sendText** nodes accordingly.
5. **Deploy the Workflow:**
* Save and activate the workflow.
* Trigger a test alert from HetrixTools to verify if messages are received on WhatsApp.
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## 🧱 **Prerequisites**
* An active [HetrixTools](https://hetrixtools.com/) account with Uptime Monitors or Resource Usage Monitoring enabled.
* A publicly accessible instance of **n8n** with Webhook node enabled.
* Access to a running and configured **GOWA** (WhatsApp REST API) server.
* Required credentials configured in n8n for GOWA (API key, URL, phone number, etc.).
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