{
  "nodes": [
    {
      "id": "webserver-1",
      "type": "webserver",
      "position": { "x": 100, "y": 200 },
      "props": {
        "label": "E-commerce API",
        "rpsCapacity": 200
      }
    },
    {
      "id": "microservice-1", 
      "type": "microservice",
      "position": { "x": 300, "y": 200 },
      "props": {
        "label": "Payment Service",
        "instanceCount": 2,
        "cpu": 4,
        "ramGb": 8,
        "rpsCapacity": 100,
        "scalingStrategy": "auto"
      }
    },
    {
      "id": "stripe-service",
      "type": "third party service",
      "position": { "x": 500, "y": 150 },
      "props": {
        "label": "Stripe Payments",
        "provider": "Stripe",
        "latency": 180
      }
    },
    {
      "id": "twilio-service",
      "type": "third party service",
      "position": { "x": 500, "y": 250 },
      "props": {
        "label": "SMS Notifications",
        "provider": "Twilio",
        "latency": 250
      }
    },
    {
      "id": "microservice-2",
      "type": "microservice",
      "position": { "x": 300, "y": 350 },
      "props": {
        "label": "Notification Service",
        "instanceCount": 1,
        "cpu": 2,
        "ramGb": 4,
        "rpsCapacity": 50,
        "scalingStrategy": "manual"
      }
    },
    {
      "id": "sendgrid-service",
      "type": "third party service",
      "position": { "x": 500, "y": 350 },
      "props": {
        "label": "Email Service",
        "provider": "SendGrid",
        "latency": 200
      }
    },
    {
      "id": "slack-service",
      "type": "third party service",
      "position": { "x": 500, "y": 450 },
      "props": {
        "label": "Slack Alerts",
        "provider": "Slack",
        "latency": 300
      }
    },
    {
      "id": "monitor-1",
      "type": "monitoring/alerting",
      "position": { "x": 700, "y": 200 },
      "props": {
        "label": "System Monitor",
        "tool": "Datadog",
        "alertMetric": "latency",
        "thresholdValue": 500,
        "thresholdUnit": "ms"
      }
    },
    {
      "id": "db-1",
      "type": "database",
      "position": { "x": 700, "y": 350 },
      "props": {
        "label": "Transaction DB",
        "replication": 2,
        "maxRPS": 300,
        "baseLatencyMs": 20
      }
    }
  ],
  "connections": [
    {
      "source": "webserver-1",
      "target": "microservice-1",
      "label": "Payment Requests",
      "protocol": "https"
    },
    {
      "source": "microservice-1",
      "target": "stripe-service",
      "label": "Process Payment",
      "protocol": "https"
    },
    {
      "source": "microservice-1",
      "target": "twilio-service",
      "label": "SMS Confirmation",
      "protocol": "https"
    },
    {
      "source": "webserver-1",
      "target": "microservice-2",
      "label": "Notification Requests",
      "protocol": "https"
    },
    {
      "source": "microservice-2",
      "target": "sendgrid-service",
      "label": "Send Email",
      "protocol": "https"
    },
    {
      "source": "microservice-2",
      "target": "slack-service",
      "label": "Admin Alerts",
      "protocol": "https"
    },
    {
      "source": "stripe-service",
      "target": "monitor-1",
      "label": "Payment Metrics",
      "protocol": "http"
    },
    {
      "source": "twilio-service",
      "target": "monitor-1",
      "label": "SMS Metrics",
      "protocol": "http"
    },
    {
      "source": "sendgrid-service",
      "target": "monitor-1",
      "label": "Email Metrics",
      "protocol": "http"
    },
    {
      "source": "monitor-1",
      "target": "db-1",
      "label": "Store Metrics",
      "protocol": "tcp"
    }
  ]
}