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2025-12-07 09:36:05 -08:00 · 2025-08-24 12:57:36 +10:00
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+# Metrics API Endpoint
+
+The `/metrics` endpoint exposes **Prometheus-compatible metrics** for NetAlertX, including aggregate device counts and per-device status.
+
+---
+
+## Endpoint Details
+
+* **GET** `/metrics` → Returns metrics in plain text.
+* **Host**: NetAlertX server
+* **Port**: As configured in `GRAPHQL_PORT` (default: `20212`)
+
+---
+
+## Example Output
+
+```text
+netalertx_connected_devices 31
+netalertx_offline_devices 54
+netalertx_down_devices 0
+netalertx_new_devices 0
+netalertx_archived_devices 31
+netalertx_favorite_devices 2
+netalertx_my_devices 54
+
+netalertx_device_status{device="Net - Huawei", mac="Internet", ip="1111.111.111.111", vendor="None", first_connection="2021-01-01 00:00:00", last_connection="2025-08-04 17:57:00", dev_type="Router", device_status="Online"} 1
+netalertx_device_status{device="Net - USG", mac="74:ac:74:ac:74:ac", ip="192.168.1.1", vendor="Ubiquiti Networks Inc.", first_connection="2022-02-12 22:05:00", last_connection="2025-06-07 08:16:49", dev_type="Firewall", device_status="Archived"} 1
+netalertx_device_status{device="Raspberry Pi 4 LAN", mac="74:ac:74:ac:74:74", ip="192.168.1.9", vendor="Raspberry Pi Trading Ltd", first_connection="2022-02-12 22:05:00", last_connection="2025-08-04 17:57:00", dev_type="Singleboard Computer (SBC)", device_status="Online"} 1
+...
+```
+
+---
+
+## Metrics Overview
+
+### 1. Aggregate Device Counts
+
+| Metric                        | Description                              |
+| ----------------------------- | ---------------------------------------- |
+| `netalertx_connected_devices` | Devices currently connected              |
+| `netalertx_offline_devices`   | Devices currently offline                |
+| `netalertx_down_devices`      | Down/unreachable devices                 |
+| `netalertx_new_devices`       | Recently detected devices                |
+| `netalertx_archived_devices`  | Archived devices                         |
+| `netalertx_favorite_devices`  | User-marked favorites                    |
+| `netalertx_my_devices`        | Devices associated with the current user |
+
+---
+
+### 2. Per-Device Status
+
+Metric: `netalertx_device_status`
+Each device has labels:
+
+* `device`: friendly name
+* `mac`: MAC address (or placeholder)
+* `ip`: last recorded IP
+* `vendor`: manufacturer or "None"
+* `first_connection`: timestamp of first detection
+* `last_connection`: most recent contact
+* `dev_type`: device type/category
+* `device_status`: current status (`Online`, `Offline`, `Archived`, `Down`, …)
+
+Metric value is always `1` (presence indicator).
+
+---
+
+## Querying with `curl`
+
+```sh
+curl 'http://<server_ip>:<GRAPHQL_PORT>/metrics' \
+  -H 'Authorization: Bearer <API_TOKEN>' \
+  -H 'Accept: text/plain'
+```
+
+Replace placeholders:
+
+* `<server_ip>` – NetAlertX host IP/hostname
+* `<GRAPHQL_PORT>` – configured port (default `20212`)
+* `<API_TOKEN>` – your API token
+
+---
+
+## Prometheus Scraping Configuration
+
+```yaml
+scrape_configs:
+  - job_name: 'netalertx'
+    metrics_path: /metrics
+    scheme: http
+    scrape_interval: 60s
+    static_configs:
+      - targets: ['<server_ip>:<GRAPHQL_PORT>']
+    authorization:
+      type: Bearer
+      credentials: <API_TOKEN>
+```
+
+---
+
+## Grafana Dashboard Template
+
+Sample template JSON: [Download](./samples/API/Grafana_Dashboard.json)