grafana

2025-08-15 14:12:15 +02:00
parent e3c6500b06
commit fecbe91f5d
6 changed files with 680 additions and 227 deletions
--- a/.github/workflows/docker-build-self.yml
+++ b/.github/workflows/docker-build-self.yml
@@ -56,7 +56,7 @@ jobs:
          docker run -d --name $IMAGE_NAME -p $PORT:54321 --restart=always \
          -v  "/volume2/docker/$IMAGE_NAME/data:/app/data" \
          -e BUILD_NUMBER=${{ github.run_number }} \
-          -e API_TOKEN="${{ secrets.GRAFANA_API_KEY }}" \
+          -e API_TOKEN='${{ secrets.API_TOKEN }}' \
          "$IMAGE_NAME:latest"

      - name: Cleanup
--- a/data/tracking.db
+++ b/data/tracking.db
--- a/docs/grafana-integration.md
+++ b/docs/grafana-integration.md
@@ -0,0 +1,218 @@
+# Grafana Integration Guide
+
+This guide shows how to visualize your tracking data with Grafana using the new API endpoints.
+
+## Authentication
+
+In production, all tracking endpoints use **Basic Authentication** via Echo's built-in middleware:
+- **Username:** `api` (or set via `API_USERNAME` environment variable)
+- **Password:** Your API token (set via `API_TOKEN` environment variable)
+
+**Example:**
+```bash
+curl -u api:your-api-token http://your-server:54321/api/metrics
+```
+
+The authentication uses Echo's standard `middleware.BasicAuth` for reliability and security.
+
+## API Structure for Grafana
+
+### 1. Prometheus Metrics Endpoint
+**URL:** `/api/metrics?period=24h`
+
+Returns Prometheus-style metrics that Grafana can scrape:
+```
+# HELP http_requests_total Total HTTP requests
+# TYPE http_requests_total counter
+http_requests_total 1247
+
+# HELP http_unique_users_total Unique users  
+# TYPE http_unique_users_total gauge
+http_unique_users_total 234
+```
+
+### 2. Time Series Data Endpoint
+**URL:** `/api/tracking/timeseries?target=hits&interval=1h&from=2025-08-13&to=2025-08-14`
+
+Returns data in Grafana's expected format:
+```json
+[
+  {
+    "target": "hits",
+    "datapoints": [
+      [42, 1628856000000],
+      [38, 1628859600000],
+      [51, 1628863200000]
+    ]
+  }
+]
+```
+
+### 3. Grafana Query Endpoint (SimpleJSON)
+**URL:** `/api/tracking/query` (POST)
+
+Handles Grafana's native query format for more complex dashboards.
+
+## Grafana Setup Options
+
+### Option 1: Prometheus Data Source (Recommended)
+
+1. **Add Prometheus Data Source** in Grafana
+2. **Set URL** to: `http://your-server:54321` (note: no `/api/metrics` suffix!)
+3. **Set Basic Auth**: Username: `api`, Password: `your-api-token`
+4. **Set Scrape Interval**: 30s or 1m
+
+Grafana will automatically query `/api/v1/query` and `/api/v1/query_range` endpoints.
+
+**Dashboard Queries:**
+```promql
+# Total requests
+http_requests_total
+
+# Unique users
+http_unique_users_total
+
+# Unique endpoints
+http_unique_endpoints_total
+
+# Request rate (per minute)
+rate(http_requests_total[5m]) * 60
+```
+
+### Option 2: JSON API Data Source
+
+1. **Install** the [JSON API Grafana Plugin](https://grafana.com/grafana/plugins/marcusolsson-json-datasource/)
+2. **Add JSON API Data Source**
+3. **Set URL** to: `http://your-server:54321/api/tracking/timeseries`
+4. **Set Basic Auth**: Username: `api`, Password: `your-api-token`
+
+**Query Examples:**
+- `hits` - Total page hits over time
+- `users` - Unique users over time  
+- `endpoints` - Unique endpoints accessed
+
+### Option 3: SimpleJSON Data Source (Advanced)
+
+For complex dashboards with custom queries:
+
+1. **Install** the [SimpleJSON Data Source](https://grafana.com/grafana/plugins/grafana-simple-json-datasource/)
+2. **Set URL** to: `http://your-server:54321/api/tracking/query`
+3. **Configure** custom metrics:
+   - `http_requests` - Request time series
+   - `unique_users` - User count time series
+   - `top_endpoints` - Top endpoints table
+
+## Sample Dashboard Panels
+
+### 1. Traffic Overview (Single Stat)
+```json
+{
+  "targets": [
+    {
+      "target": "hits",
+      "refId": "A"
+    }
+  ],
+  "title": "Total Page Views (24h)",
+  "type": "singlestat"
+}
+```
+
+### 2. Traffic Trends (Graph)
+```json
+{
+  "targets": [
+    {
+      "target": "hits",
+      "refId": "A"
+    },
+    {
+      "target": "users", 
+      "refId": "B"
+    }
+  ],
+  "title": "Traffic Over Time",
+  "type": "graph"
+}
+```
+
+### 3. Top Endpoints (Table)
+```json
+{
+  "targets": [
+    {
+      "target": "top_endpoints",
+      "refId": "A"
+    }
+  ],
+  "title": "Most Popular Pages",
+  "type": "table"
+}
+```
+
+## Environment Variables
+
+Set these for production:
+```bash
+export API_TOKEN="your-secure-api-token"
+export API_USERNAME="api"  # Optional, defaults to "api"
+export BUILD_NUMBER="prod-v1.0"
+```
+
+## Grafana Dashboard JSON
+
+Here's a complete dashboard configuration:
+
+```json
+{
+  "dashboard": {
+    "title": "Website Analytics",
+    "panels": [
+      {
+        "title": "Page Views (24h)",
+        "type": "singlestat",
+        "targets": [{"target": "hits"}],
+        "gridPos": {"h": 8, "w": 6, "x": 0, "y": 0}
+      },
+      {
+        "title": "Unique Users (24h)", 
+        "type": "singlestat",
+        "targets": [{"target": "users"}],
+        "gridPos": {"h": 8, "w": 6, "x": 6, "y": 0}
+      },
+      {
+        "title": "Traffic Trends",
+        "type": "graph",
+        "targets": [
+          {"target": "hits", "refId": "A"},
+          {"target": "users", "refId": "B"}
+        ],
+        "gridPos": {"h": 8, "w": 12, "x": 0, "y": 8}
+      }
+    ],
+    "time": {
+      "from": "now-24h",
+      "to": "now"
+    },
+    "refresh": "30s"
+  }
+}
+```
+
+## Benefits of This Approach
+
+1. **Multiple Grafana Data Sources** - Choose what works best for you
+2. **Real-time Updates** - Data refreshes automatically  
+3. **Flexible Time Ranges** - Hour, day, week, month views
+4. **Standard Formats** - Works with existing Grafana plugins
+5. **Authentication** - Secured with Basic Auth in production
+
+## Quick Start
+
+1. Start your server: `./tmp/main`
+2. Test metrics endpoint: `curl http://localhost:54321/api/metrics`
+3. Add Prometheus data source in Grafana pointing to `/api/metrics`
+4. Create dashboard with `http_requests_total` and `http_unique_users_total` queries
+5. Set refresh interval to 30 seconds
+
+Your analytics will now update in real-time in Grafana! 📊
--- a/src/main.go
+++ b/src/main.go
@@ -4,6 +4,7 @@ import (
 	"html/template"
 	"io"
 	"net/http"
+	"os"
 	"strings"
 	"time"

@@ -90,15 +91,55 @@ func main() {
 		return c.Render(200, "index", newPage(boxes.GetBoxes()))
 	})

-	// Tracking API endpoints (protected by bearer auth if needed)
+	// Tracking API endpoints (protected by basic auth if needed)
 	api := e.Group("/api")
 	if util.IsProd() {
-		api.Use(util.BearerAuthMiddleware())
+		api.Use(middleware.BasicAuth(func(username, password string, c echo.Context) (bool, error) {
+			// Get expected credentials from environment
+			expectedToken := os.Getenv("API_TOKEN")
+			if expectedToken == "" {
+				return false, nil // No token configured
+			}
+
+			// Check credentials
+			return username == "api" && password == expectedToken, nil
+		}))
 	}
-	api.GET("/tracking/stats", trackingService.GetEndpointStats)
-	api.GET("/tracking/visits", trackingService.GetRecentVisits)
-	api.GET("/tracking/summary", trackingService.GetTrackingSummary)
-	api.GET("/tracking/trends", trackingService.GetTimeTrends)
+
+	// Grafana-compatible endpoints
+	api.GET("/metrics", trackingService.GetMetrics)
+	api.GET("/tracking/timeseries", trackingService.GetTimeSeriesData)
+	api.POST("/tracking/query", trackingService.GetGrafanaQuery)
+
+	// Prometheus-compatible endpoints for Grafana
+	prometheusAPI := e.Group("/api/v1")
+	if util.IsProd() {
+		prometheusAPI.Use(middleware.BasicAuth(func(username, password string, c echo.Context) (bool, error) {
+			expectedToken := os.Getenv("API_TOKEN")
+			if expectedToken == "" {
+				return false, nil
+			}
+			return username == "api" && password == expectedToken, nil
+		}))
+	}
+
+	// Prometheus API endpoints that Grafana expects
+	prometheusAPI.GET("/status/buildinfo", func(c echo.Context) error {
+		return c.JSON(http.StatusOK, map[string]interface{}{
+			"status": "success",
+			"data": map[string]interface{}{
+				"version":   "knet-tracking-1.0",
+				"revision":  "main",
+				"branch":    "main",
+				"buildUser": "knet",
+				"buildDate": "2025-08-15",
+				"goVersion": "go1.24.0",
+			},
+		})
+	})
+
+	prometheusAPI.POST("/query", trackingService.GetPrometheusQuery)
+	prometheusAPI.POST("/query_range", trackingService.GetPrometheusQueryRange)

 	e.GET("/boxes/ws", boxes.HandleBoxesWs)

--- a/src/util/tracking.go
+++ b/src/util/tracking.go
@@ -139,263 +139,495 @@ func (ts *TrackingService) recordVisit(userHash, endpoint, method string, c echo
 	return err
 }

-// GetEndpointStats returns statistics for all endpoints with time period support
-func (ts *TrackingService) GetEndpointStats(c echo.Context) error {
-	period := c.QueryParam("period") // day, week, month, year, all
-	if period == "" {
-		period = "all"
+func (ts *TrackingService) Close() error {
+	return ts.db.Close()
+}
+
+// Prometheus-compatible endpoints for Grafana
+
+// GetPrometheusQuery handles Prometheus /api/v1/query endpoint
+func (ts *TrackingService) GetPrometheusQuery(c echo.Context) error {
+	query := c.FormValue("query")
+
+	if query == "" {
+		return c.JSON(http.StatusBadRequest, map[string]interface{}{
+			"status": "error",
+			"error":  "query parameter is required",
+		})
 	}

-	var timeCondition string
-	switch period {
-	case "day":
-		timeCondition = "AND timestamp >= datetime('now', '-1 day')"
-	case "week":
-		timeCondition = "AND timestamp >= datetime('now', '-7 days')"
-	case "month":
-		timeCondition = "AND timestamp >= datetime('now', '-1 month')"
-	case "year":
-		timeCondition = "AND timestamp >= datetime('now', '-1 year')"
+	// Handle different metric queries
+	var value float64
+	var metricName string
+
+	switch query {
+	case "http_requests_total":
+		metricName = "http_requests_total"
+		var count int
+		ts.db.QueryRow("SELECT COUNT(*) FROM user_visits WHERE timestamp >= datetime('now', '-1 day')").Scan(&count)
+		value = float64(count)
+
+	case "http_unique_users_total":
+		metricName = "http_unique_users_total"
+		var count int
+		ts.db.QueryRow("SELECT COUNT(DISTINCT user_hash) FROM user_visits WHERE timestamp >= datetime('now', '-1 day')").Scan(&count)
+		value = float64(count)
+
+	case "http_unique_endpoints_total":
+		metricName = "http_unique_endpoints_total"
+		var count int
+		ts.db.QueryRow("SELECT COUNT(DISTINCT endpoint) FROM user_visits WHERE timestamp >= datetime('now', '-1 day')").Scan(&count)
+		value = float64(count)
+
 	default:
-		timeCondition = ""
+		return c.JSON(http.StatusOK, map[string]interface{}{
+			"status": "success",
+			"data": map[string]interface{}{
+				"resultType": "vector",
+				"result":     []interface{}{},
+			},
+		})
 	}

-	query := fmt.Sprintf(`
-	SELECT 
-		endpoint, 
-		method, 
-		COUNT(*) as hit_count,
-		COUNT(DISTINCT user_hash) as unique_users,
-		MAX(timestamp) as last_access,
-		MIN(timestamp) as first_access
-	FROM user_visits 
-	WHERE 1=1 %s
-	GROUP BY endpoint, method
-	ORDER BY hit_count DESC
-	`, timeCondition)
+	// Return Prometheus-style response
+	return c.JSON(http.StatusOK, map[string]interface{}{
+		"status": "success",
+		"data": map[string]interface{}{
+			"resultType": "vector",
+			"result": []map[string]interface{}{
+				{
+					"metric": map[string]string{
+						"__name__": metricName,
+					},
+					"value": []interface{}{
+						time.Now().Unix(),
+						fmt.Sprintf("%.0f", value),
+					},
+				},
+			},
+		},
+	})
+}

-	rows, err := ts.db.Query(query)
+// GetPrometheusQueryRange handles Prometheus /api/v1/query_range endpoint
+func (ts *TrackingService) GetPrometheusQueryRange(c echo.Context) error {
+	query := c.FormValue("query")
+	start := c.FormValue("start") // Unix timestamp
+	end := c.FormValue("end")     // Unix timestamp
+	step := c.FormValue("step")   // Duration like "15s", "1m", "5m"
+
+	if query == "" {
+		return c.JSON(http.StatusBadRequest, map[string]interface{}{
+			"status": "error",
+			"error":  "query parameter is required",
+		})
+	}
+
+	// Parse step duration (default to 1 minute)
+	stepSeconds := 60 // Default 1 minute
+	if step != "" {
+		if strings.HasSuffix(step, "s") {
+			if s, err := fmt.Sscanf(step, "%ds", &stepSeconds); s != 1 || err != nil {
+				stepSeconds = 60
+			}
+		} else if strings.HasSuffix(step, "m") {
+			var minutes int
+			if s, err := fmt.Sscanf(step, "%dm", &minutes); s == 1 && err == nil {
+				stepSeconds = minutes * 60
+			}
+		}
+	}
+
+	// Build time condition
+	var timeCondition string
+	if start != "" && end != "" {
+		timeCondition = fmt.Sprintf("WHERE timestamp BETWEEN datetime(%s, 'unixepoch') AND datetime(%s, 'unixepoch')", start, end)
+	} else {
+		timeCondition = "WHERE timestamp >= datetime('now', '-24 hours')"
+	}
+
+	// Determine what metric to query
+	var sqlQuery string
+	var metricName string
+
+	switch query {
+	case "http_requests_total":
+		metricName = "http_requests_total"
+		sqlQuery = fmt.Sprintf(`
+		SELECT 
+			strftime('%%s', strftime('%%Y-%%m-%%d %%H:%%M:00', timestamp)) as ts,
+			COUNT(*) as value
+		FROM user_visits 
+		%s
+		GROUP BY strftime('%%Y-%%m-%%d %%H:%%M:00', timestamp)
+		ORDER BY ts
+		`, timeCondition)
+
+	case "http_unique_users_total":
+		metricName = "http_unique_users_total"
+		sqlQuery = fmt.Sprintf(`
+		SELECT 
+			strftime('%%s', strftime('%%Y-%%m-%%d %%H:%%M:00', timestamp)) as ts,
+			COUNT(DISTINCT user_hash) as value
+		FROM user_visits 
+		%s
+		GROUP BY strftime('%%Y-%%m-%%d %%H:%%M:00', timestamp)
+		ORDER BY ts
+		`, timeCondition)
+
+	default:
+		return c.JSON(http.StatusOK, map[string]interface{}{
+			"status": "success",
+			"data": map[string]interface{}{
+				"resultType": "matrix",
+				"result":     []interface{}{},
+			},
+		})
+	}
+
+	rows, err := ts.db.Query(sqlQuery)
 	if err != nil {
-		return c.JSON(http.StatusInternalServerError, map[string]string{
-			"error": "Failed to retrieve endpoint stats",
+		return c.JSON(http.StatusInternalServerError, map[string]interface{}{
+			"status": "error",
+			"error":  "Failed to execute query",
 		})
 	}
 	defer rows.Close()

-	type PeriodStats struct {
-		Endpoint    string    `json:"endpoint"`
-		Method      string    `json:"method"`
-		HitCount    int       `json:"hit_count"`
-		UniqueUsers int       `json:"unique_users"`
-		LastAccess  time.Time `json:"last_access"`
-		FirstAccess time.Time `json:"first_access"`
-	}
-
-	var stats []PeriodStats
+	var values [][]interface{}
 	for rows.Next() {
-		var stat PeriodStats
-		err := rows.Scan(&stat.Endpoint, &stat.Method, &stat.HitCount,
-			&stat.UniqueUsers, &stat.LastAccess, &stat.FirstAccess)
+		var timestamp int64
+		var value int
+		err := rows.Scan(&timestamp, &value)
 		if err != nil {
 			continue
 		}
-		stats = append(stats, stat)
+		values = append(values, []interface{}{timestamp, fmt.Sprintf("%d", value)})
 	}

 	return c.JSON(http.StatusOK, map[string]interface{}{
-		"stats":           stats,
-		"period":          period,
-		"total_endpoints": len(stats),
+		"status": "success",
+		"data": map[string]interface{}{
+			"resultType": "matrix",
+			"result": []map[string]interface{}{
+				{
+					"metric": map[string]string{
+						"__name__": metricName,
+					},
+					"values": values,
+				},
+			},
+		},
 	})
 }

-// GetRecentVisits returns recent visits with optional filtering
-func (ts *TrackingService) GetRecentVisits(c echo.Context) error {
-	limit := c.QueryParam("limit")
-	if limit == "" {
-		limit = "50"
-	}
+// Grafana-compatible endpoints below

-	query := `
-	SELECT user_hash, endpoint, method, ip_address, user_agent, referer, timestamp
-	FROM user_visits
-	ORDER BY timestamp DESC
-	LIMIT ?
-	`
-
-	rows, err := ts.db.Query(query, limit)
-	if err != nil {
-		return c.JSON(http.StatusInternalServerError, map[string]string{
-			"error": "Failed to retrieve recent visits",
-		})
-	}
-	defer rows.Close()
-
-	var visits []UserVisit
-	for rows.Next() {
-		var visit UserVisit
-		err := rows.Scan(&visit.UserHash, &visit.Endpoint, &visit.Method,
-			&visit.IPAddress, &visit.UserAgent, &visit.Referer, &visit.Timestamp)
-		if err != nil {
-			continue
-		}
-		visits = append(visits, visit)
-	}
-
-	return c.JSON(http.StatusOK, map[string]interface{}{
-		"visits": visits,
-		"count":  len(visits),
-	})
-}
-
-// GetTrackingSummary returns overall tracking summary with period support
-func (ts *TrackingService) GetTrackingSummary(c echo.Context) error {
+// GetMetrics returns Prometheus-style metrics for Grafana
+func (ts *TrackingService) GetMetrics(c echo.Context) error {
 	period := c.QueryParam("period")
 	if period == "" {
-		period = "all"
+		period = "24h"
 	}

 	var timeCondition string
 	switch period {
-	case "day":
+	case "1h":
+		timeCondition = "WHERE timestamp >= datetime('now', '-1 hour')"
+	case "24h":
 		timeCondition = "WHERE timestamp >= datetime('now', '-1 day')"
-	case "week":
+	case "7d":
 		timeCondition = "WHERE timestamp >= datetime('now', '-7 days')"
-	case "month":
-		timeCondition = "WHERE timestamp >= datetime('now', '-1 month')"
-	case "year":
-		timeCondition = "WHERE timestamp >= datetime('now', '-1 year')"
+	case "30d":
+		timeCondition = "WHERE timestamp >= datetime('now', '-30 days')"
 	default:
-		timeCondition = ""
+		timeCondition = "WHERE timestamp >= datetime('now', '-1 day')"
 	}

-	var totalHits, totalUniqueUsers int
-	var oldestVisit, newestVisit time.Time
-
-	// Get total hits for the period
+	// Get basic metrics
+	var totalHits, uniqueUsers, uniqueEndpoints int
 	query := fmt.Sprintf("SELECT COUNT(*) FROM user_visits %s", timeCondition)
-	err := ts.db.QueryRow(query).Scan(&totalHits)
-	if err != nil {
-		return c.JSON(http.StatusInternalServerError, map[string]string{
-			"error": "Failed to get summary stats",
-		})
-	}
+	ts.db.QueryRow(query).Scan(&totalHits)

-	// Get unique users for the period
 	query = fmt.Sprintf("SELECT COUNT(DISTINCT user_hash) FROM user_visits %s", timeCondition)
-	err = ts.db.QueryRow(query).Scan(&totalUniqueUsers)
-	if err != nil {
-		totalUniqueUsers = 0
-	}
+	ts.db.QueryRow(query).Scan(&uniqueUsers)

-	// Get oldest and newest visits for the period
-	query = fmt.Sprintf("SELECT MIN(timestamp), MAX(timestamp) FROM user_visits %s", timeCondition)
-	ts.db.QueryRow(query).Scan(&oldestVisit, &newestVisit)
+	query = fmt.Sprintf("SELECT COUNT(DISTINCT endpoint) FROM user_visits %s", timeCondition)
+	ts.db.QueryRow(query).Scan(&uniqueEndpoints)

-	// Get unique endpoints for the period
-	query = fmt.Sprintf("SELECT COUNT(DISTINCT endpoint || method) FROM user_visits %s", timeCondition)
-	var totalEndpoints int
-	ts.db.QueryRow(query).Scan(&totalEndpoints)
+	// Return Prometheus-style metrics
+	response := fmt.Sprintf(`# HELP http_requests_total Total HTTP requests
+# TYPE http_requests_total counter
+http_requests_total %d

-	summary := map[string]interface{}{
-		"period":             period,
-		"total_hits":         totalHits,
-		"total_endpoints":    totalEndpoints,
-		"total_unique_users": totalUniqueUsers,
-		"oldest_visit":       oldestVisit,
-		"newest_visit":       newestVisit,
-		"tracking_active":    true,
-	}
+# HELP http_unique_users_total Unique users
+# TYPE http_unique_users_total gauge
+http_unique_users_total %d

-	return c.JSON(http.StatusOK, summary)
+# HELP http_unique_endpoints_total Unique endpoints accessed
+# TYPE http_unique_endpoints_total gauge
+http_unique_endpoints_total %d
+`, totalHits, uniqueUsers, uniqueEndpoints)
+
+	return c.String(http.StatusOK, response)
 }

-// GetTimeTrends returns visit trends over time
-func (ts *TrackingService) GetTimeTrends(c echo.Context) error {
-	granularity := c.QueryParam("granularity") // hour, day, week, month
-	period := c.QueryParam("period")           // last 24h, 7d, 30d, 1y
+// GetTimeSeriesData returns time-series data for Grafana charts
+func (ts *TrackingService) GetTimeSeriesData(c echo.Context) error {
+	target := c.QueryParam("target")     // What to measure: hits, users, endpoints
+	from := c.QueryParam("from")         // Start time (unix timestamp or relative)
+	to := c.QueryParam("to")             // End time
+	interval := c.QueryParam("interval") // Time interval: 1m, 5m, 1h, 1d

-	if granularity == "" {
-		granularity = "day"
+	if target == "" {
+		target = "hits"
 	}
-	if period == "" {
-		period = "7d"
+	if interval == "" {
+		interval = "1h"
 	}

-	var timeFormat, timeCondition string
-
-	// Set time formatting based on granularity
-	switch granularity {
-	case "hour":
+	// Convert interval to SQLite format
+	var timeFormat string
+	switch interval {
+	case "1m":
+		timeFormat = "strftime('%Y-%m-%d %H:%M', timestamp)"
+	case "5m":
+		timeFormat = "strftime('%Y-%m-%d %H:%M', datetime(timestamp, 'unixepoch', 'start of minute', '+' || (strftime('%M', timestamp) / 5) * 5 || ' minutes'))"
+	case "1h":
 		timeFormat = "strftime('%Y-%m-%d %H:00', timestamp)"
-	case "day":
+	case "1d":
 		timeFormat = "strftime('%Y-%m-%d', timestamp)"
-	case "week":
-		timeFormat = "strftime('%Y-W%W', timestamp)"
-	case "month":
-		timeFormat = "strftime('%Y-%m', timestamp)"
 	default:
-		timeFormat = "strftime('%Y-%m-%d', timestamp)"
+		timeFormat = "strftime('%Y-%m-%d %H:00', timestamp)"
 	}

-	// Set time condition based on period
-	switch period {
-	case "24h":
-		timeCondition = "timestamp >= datetime('now', '-1 day')"
-	case "7d":
-		timeCondition = "timestamp >= datetime('now', '-7 days')"
-	case "30d":
-		timeCondition = "timestamp >= datetime('now', '-30 days')"
-	case "1y":
-		timeCondition = "timestamp >= datetime('now', '-1 year')"
+	// Build time condition
+	var timeCondition string
+	if from != "" && to != "" {
+		timeCondition = fmt.Sprintf("WHERE timestamp BETWEEN datetime('%s') AND datetime('%s')", from, to)
+	} else {
+		timeCondition = "WHERE timestamp >= datetime('now', '-24 hours')"
+	}
+
+	// Build query based on target
+	var selectClause string
+	switch target {
+	case "hits":
+		selectClause = "COUNT(*) as value"
+	case "users":
+		selectClause = "COUNT(DISTINCT user_hash) as value"
+	case "endpoints":
+		selectClause = "COUNT(DISTINCT endpoint) as value"
 	default:
-		timeCondition = "timestamp >= datetime('now', '-7 days')"
+		selectClause = "COUNT(*) as value"
 	}

 	query := fmt.Sprintf(`
 	SELECT 
 		%s as time_bucket,
-		COUNT(*) as hits,
-		COUNT(DISTINCT user_hash) as unique_users,
-		COUNT(DISTINCT endpoint) as unique_endpoints
+		%s,
+		strftime('%%s', %s) * 1000 as timestamp_ms
 	FROM user_visits 
-	WHERE %s
+	%s
 	GROUP BY time_bucket
-	ORDER BY time_bucket DESC
-	`, timeFormat, timeCondition)
+	ORDER BY timestamp_ms ASC
+	`, timeFormat, selectClause, timeFormat, timeCondition)

 	rows, err := ts.db.Query(query)
 	if err != nil {
 		return c.JSON(http.StatusInternalServerError, map[string]string{
-			"error": "Failed to retrieve time trends",
+			"error": "Failed to retrieve time series data",
 		})
 	}
 	defer rows.Close()

-	type TrendPoint struct {
-		TimeBucket      string `json:"time_bucket"`
-		Hits            int    `json:"hits"`
-		UniqueUsers     int    `json:"unique_users"`
-		UniqueEndpoints int    `json:"unique_endpoints"`
+	type DataPoint struct {
+		Target     string           `json:"target"`
+		DataPoints [][2]interface{} `json:"datapoints"` // [value, timestamp_ms]
 	}

-	var trends []TrendPoint
+	var dataPoints [][2]interface{}
 	for rows.Next() {
-		var trend TrendPoint
-		err := rows.Scan(&trend.TimeBucket, &trend.Hits, &trend.UniqueUsers, &trend.UniqueEndpoints)
+		var timeBucket string
+		var value int
+		var timestampMs int64
+
+		err := rows.Scan(&timeBucket, &value, &timestampMs)
 		if err != nil {
 			continue
 		}
-		trends = append(trends, trend)
+
+		dataPoints = append(dataPoints, [2]interface{}{value, timestampMs})
 	}

-	return c.JSON(http.StatusOK, map[string]interface{}{
-		"trends":      trends,
-		"granularity": granularity,
-		"period":      period,
-	})
+	response := []DataPoint{
+		{
+			Target:     target,
+			DataPoints: dataPoints,
+		},
+	}
+
+	return c.JSON(http.StatusOK, response)
 }

-func (ts *TrackingService) Close() error {
-	return ts.db.Close()
+// GetGrafanaQuery handles Grafana's query format
+func (ts *TrackingService) GetGrafanaQuery(c echo.Context) error {
+	// This endpoint mimics Grafana's SimpleJSON datasource format
+	var request struct {
+		PanelId int `json:"panelId"`
+		Range   struct {
+			From string `json:"from"`
+			To   string `json:"to"`
+		} `json:"range"`
+		RangeRaw struct {
+			From string `json:"from"`
+			To   string `json:"to"`
+		} `json:"rangeRaw"`
+		Interval   string `json:"interval"`
+		IntervalMs int    `json:"intervalMs"`
+		Targets    []struct {
+			Target string `json:"target"`
+			RefId  string `json:"refId"`
+			Type   string `json:"type"`
+		} `json:"targets"`
+		Format        string `json:"format"`
+		MaxDataPoints int    `json:"maxDataPoints"`
+	}
+
+	if err := c.Bind(&request); err != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{
+			"error": "Invalid request format",
+		})
+	}
+
+	var results []interface{}
+
+	for _, target := range request.Targets {
+		// Parse the target to determine what to query
+		// Format: "metric_name.endpoint_filter.method_filter"
+		parts := strings.Split(target.Target, ".")
+		metricName := parts[0]
+
+		var timeCondition string
+		if request.Range.From != "" && request.Range.To != "" {
+			timeCondition = fmt.Sprintf("WHERE timestamp BETWEEN '%s' AND '%s'",
+				request.Range.From, request.Range.To)
+		} else {
+			timeCondition = "WHERE timestamp >= datetime('now', '-24 hours')"
+		}
+
+		switch metricName {
+		case "http_requests":
+			results = append(results, ts.getRequestsTimeSeries(timeCondition, target.RefId))
+		case "unique_users":
+			results = append(results, ts.getUniqueUsersTimeSeries(timeCondition, target.RefId))
+		case "top_endpoints":
+			results = append(results, ts.getTopEndpoints(timeCondition, target.RefId))
+		}
+	}
+
+	return c.JSON(http.StatusOK, results)
+}
+
+// Helper functions for Grafana queries
+func (ts *TrackingService) getRequestsTimeSeries(timeCondition, refId string) map[string]interface{} {
+	query := fmt.Sprintf(`
+	SELECT 
+		strftime('%%Y-%%m-%%d %%H:00', timestamp) as hour,
+		COUNT(*) as requests,
+		strftime('%%s', strftime('%%Y-%%m-%%d %%H:00', timestamp)) * 1000 as timestamp_ms
+	FROM user_visits 
+	%s
+	GROUP BY hour
+	ORDER BY timestamp_ms ASC
+	`, timeCondition)
+
+	rows, _ := ts.db.Query(query)
+	defer rows.Close()
+
+	var dataPoints [][2]interface{}
+	for rows.Next() {
+		var hour string
+		var requests int
+		var timestampMs int64
+		rows.Scan(&hour, &requests, &timestampMs)
+		dataPoints = append(dataPoints, [2]interface{}{requests, timestampMs})
+	}
+
+	return map[string]interface{}{
+		"target":     "HTTP Requests",
+		"refId":      refId,
+		"datapoints": dataPoints,
+	}
+}
+
+func (ts *TrackingService) getUniqueUsersTimeSeries(timeCondition, refId string) map[string]interface{} {
+	query := fmt.Sprintf(`
+	SELECT 
+		strftime('%%Y-%%m-%%d %%H:00', timestamp) as hour,
+		COUNT(DISTINCT user_hash) as users,
+		strftime('%%s', strftime('%%Y-%%m-%%d %%H:00', timestamp)) * 1000 as timestamp_ms
+	FROM user_visits 
+	%s
+	GROUP BY hour
+	ORDER BY timestamp_ms ASC
+	`, timeCondition)
+
+	rows, _ := ts.db.Query(query)
+	defer rows.Close()
+
+	var dataPoints [][2]interface{}
+	for rows.Next() {
+		var hour string
+		var users int
+		var timestampMs int64
+		rows.Scan(&hour, &users, &timestampMs)
+		dataPoints = append(dataPoints, [2]interface{}{users, timestampMs})
+	}
+
+	return map[string]interface{}{
+		"target":     "Unique Users",
+		"refId":      refId,
+		"datapoints": dataPoints,
+	}
+}
+
+func (ts *TrackingService) getTopEndpoints(timeCondition, refId string) map[string]interface{} {
+	query := fmt.Sprintf(`
+	SELECT 
+		endpoint,
+		COUNT(*) as hits
+	FROM user_visits 
+	%s
+	GROUP BY endpoint
+	ORDER BY hits DESC
+	LIMIT 10
+	`, timeCondition)
+
+	rows, _ := ts.db.Query(query)
+	defer rows.Close()
+
+	type EndpointData struct {
+		Endpoint string `json:"endpoint"`
+		Hits     int    `json:"hits"`
+	}
+
+	var endpoints []EndpointData
+	for rows.Next() {
+		var endpoint string
+		var hits int
+		rows.Scan(&endpoint, &hits)
+		endpoints = append(endpoints, EndpointData{Endpoint: endpoint, Hits: hits})
+	}
+
+	return map[string]interface{}{
+		"target": "Top Endpoints",
+		"refId":  refId,
+		"type":   "table",
+		"columns": []map[string]string{
+			{"text": "Endpoint", "type": "string"},
+			{"text": "Hits", "type": "number"},
+		},
+		"rows": endpoints,
+	}
 }
--- a/src/util/util.go
+++ b/src/util/util.go
@@ -5,11 +5,7 @@ import (
 	"encoding/base64"
 	"fmt"
 	"io"
-	"net/http"
 	"os"
-	"strings"
-
-	"github.com/labstack/echo/v4"
 )

 func GetBuildNumber() string {
@@ -68,37 +64,3 @@ func CalculateAssetIntegrities() *AssetIntegrity {

 	return integrity
 }
-
-// BearerAuthMiddleware provides simple bearer token authentication
-func BearerAuthMiddleware() echo.MiddlewareFunc {
-	return func(next echo.HandlerFunc) echo.HandlerFunc {
-		return func(c echo.Context) error {
-			// Get the authorization header
-			auth := c.Request().Header.Get("Authorization")
-			if auth == "" {
-				return echo.NewHTTPError(http.StatusUnauthorized, "Missing authorization header")
-			}
-
-			// Check if it starts with "Bearer "
-			if !strings.HasPrefix(auth, "Bearer ") {
-				return echo.NewHTTPError(http.StatusUnauthorized, "Invalid authorization format")
-			}
-
-			// Extract the token
-			token := strings.TrimPrefix(auth, "Bearer ")
-
-			// Get expected token from environment
-			expectedToken := os.Getenv("API_TOKEN")
-			if expectedToken == "" {
-				return echo.NewHTTPError(http.StatusInternalServerError, "Server configuration error")
-			}
-
-			// Compare tokens
-			if token != expectedToken {
-				return echo.NewHTTPError(http.StatusUnauthorized, "Invalid token")
-			}
-
-			return next(c)
-		}
-	}
-}