{
  "dashboard": {
    "title": "Spring Boot Application Metrics",
    "tags": ["spring-boot", "todo-app"],
    "timezone": "browser",
    "panels": [
      {
        "id": 1,
        "title": "HTTP Request Rate",
        "type": "graph",
        "gridPos": {"x": 0, "y": 0, "w": 12, "h": 8},
        "targets": [
          {
            "expr": "rate(http_server_requests_seconds_count{application=\"todo\"}[1m])",
            "legendFormat": "{{method}} {{uri}} - {{status}}"
          }
        ],
        "yaxes": [
          {"format": "reqps", "label": "Requests/sec"},
          {"format": "short"}
        ]
      },
      {
        "id": 2,
        "title": "HTTP Request Duration (p95, p99)",
        "type": "graph",
        "gridPos": {"x": 12, "y": 0, "w": 12, "h": 8},
        "targets": [
          {
            "expr": "histogram_quantile(0.95, sum(rate(http_server_requests_seconds_bucket{application=\"todo\"}[5m])) by (le, uri))",
            "legendFormat": "p95 - {{uri}}"
          },
          {
            "expr": "histogram_quantile(0.99, sum(rate(http_server_requests_seconds_bucket{application=\"todo\"}[5m])) by (le, uri))",
            "legendFormat": "p99 - {{uri}}"
          }
        ],
        "yaxes": [
          {"format": "s", "label": "Duration"},
          {"format": "short"}
        ]
      },
      {
        "id": 3,
        "title": "HTTP Status Codes",
        "type": "graph",
        "gridPos": {"x": 0, "y": 8, "w": 12, "h": 8},
        "targets": [
          {
            "expr": "sum(rate(http_server_requests_seconds_count{application=\"todo\"}[1m])) by (status)",
            "legendFormat": "{{status}}"
          }
        ],
        "yaxes": [
          {"format": "reqps"},
          {"format": "short"}
        ]
      },
      {
        "id": 4,
        "title": "JVM Memory Used",
        "type": "graph",
        "gridPos": {"x": 12, "y": 8, "w": 12, "h": 8},
        "targets": [
          {
            "expr": "jvm_memory_used_bytes{application=\"todo\", area=\"heap\"}",
            "legendFormat": "Heap"
          },
          {
            "expr": "jvm_memory_used_bytes{application=\"todo\", area=\"nonheap\"}",
            "legendFormat": "Non-Heap"
          },
          {
            "expr": "jvm_memory_max_bytes{application=\"todo\", area=\"heap\"}",
            "legendFormat": "Heap Max"
          }
        ],
        "yaxes": [
          {"format": "bytes"},
          {"format": "short"}
        ]
      },
      {
        "id": 5,
        "title": "Database Connection Pool",
        "type": "graph",
        "gridPos": {"x": 0, "y": 16, "w": 12, "h": 8},
        "targets": [
          {
            "expr": "hikaricp_connections_active{application=\"todo\"}",
            "legendFormat": "Active"
          },
          {
            "expr": "hikaricp_connections_idle{application=\"todo\"}",
            "legendFormat": "Idle"
          },
          {
            "expr": "hikaricp_connections{application=\"todo\"}",
            "legendFormat": "Total"
          },
          {
            "expr": "hikaricp_connections_max{application=\"todo\"}",
            "legendFormat": "Max"
          }
        ],
        "yaxes": [
          {"format": "short", "label": "Connections"},
          {"format": "short"}
        ]
      },
      {
        "id": 6,
        "title": "Database Connection Acquire Time",
        "type": "graph",
        "gridPos": {"x": 12, "y": 16, "w": 12, "h": 8},
        "targets": [
          {
            "expr": "rate(hikaricp_connections_acquire_seconds_sum{application=\"todo\"}[1m]) / rate(hikaricp_connections_acquire_seconds_count{application=\"todo\"}[1m])",
            "legendFormat": "Avg Acquire Time"
          }
        ],
        "yaxes": [
          {"format": "s"},
          {"format": "short"}
        ]
      },
      {
        "id": 7,
        "title": "JVM Threads",
        "type": "graph",
        "gridPos": {"x": 0, "y": 24, "w": 8, "h": 8},
        "targets": [
          {
            "expr": "jvm_threads_live_threads{application=\"todo\"}",
            "legendFormat": "Live"
          },
          {
            "expr": "jvm_threads_daemon_threads{application=\"todo\"}",
            "legendFormat": "Daemon"
          },
          {
            "expr": "jvm_threads_peak_threads{application=\"todo\"}",
            "legendFormat": "Peak"
          }
        ],
        "yaxes": [
          {"format": "short", "label": "Threads"},
          {"format": "short"}
        ]
      },
      {
        "id": 8,
        "title": "GC Pause Time",
        "type": "graph",
        "gridPos": {"x": 8, "y": 24, "w": 8, "h": 8},
        "targets": [
          {
            "expr": "rate(jvm_gc_pause_seconds_sum{application=\"todo\"}[1m])",
            "legendFormat": "{{action}} - {{cause}}"
          }
        ],
        "yaxes": [
          {"format": "s", "label": "GC Time"},
          {"format": "short"}
        ]
      },
      {
        "id": 9,
        "title": "System CPU Usage",
        "type": "graph",
        "gridPos": {"x": 16, "y": 24, "w": 8, "h": 8},
        "targets": [
          {
            "expr": "system_cpu_usage{application=\"todo\"}",
            "legendFormat": "System"
          },
          {
            "expr": "process_cpu_usage{application=\"todo\"}",
            "legendFormat": "Process"
          }
        ],
        "yaxes": [
          {"format": "percentunit", "label": "CPU"},
          {"format": "short"}
        ]
      }
    ],
    "refresh": "5s",
    "time": {
      "from": "now-15m",
      "to": "now"
    }
  },
  "overwrite": true
}