aio-01d4-stu/Last3Mon/72/answers/72-lab03-challenge-health.json

{
  "name": "72 Health check (answer)",
  "nodes": [
    {
      "name": "Health webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "parameters": {
        "httpMethod": "POST",
        "path": "my-health",
        "responseMode": "responseNode",
        "options": {}
      },
      "webhookId": "bdf5dd1e-edb4-503e-b800-c8653ff5fbb4",
      "position": [
        0,
        300
      ],
      "id": "cd5b6b9d-06a3-57ed-91ab-0ab44b344fde"
    },
    {
      "name": "Start",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "jsCode": "return [{ json: { t0: Date.now() } }];"
      },
      "position": [
        220,
        300
      ],
      "id": "0445c332-e249-5cce-915d-fca703b570b8"
    },
    {
      "name": "Check data API",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "parameters": {
        "url": "http://data-api:8800/health",
        "options": {
          "timeout": 2000
        }
      },
      "onError": "continueRegularOutput",
      "alwaysOutputData": true,
      "position": [
        440,
        300
      ],
      "id": "8ce80344-ec8e-5bd5-9a2e-839d49d9f1e9"
    },
    {
      "name": "Check FAQ",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "parameters": {
        "url": "http://data-api:8800/faq",
        "options": {
          "timeout": 2000
        },
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "q",
              "value": "vpn"
            }
          ]
        }
      },
      "onError": "continueRegularOutput",
      "alwaysOutputData": true,
      "position": [
        660,
        300
      ],
      "id": "a935db0a-fc45-5a01-aa52-405740f82e9f"
    },
    {
      "name": "Check LLM",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 3.1,
      "parameters": {
        "promptType": "define",
        "text": "Reply with the single word OK.",
        "options": {
          "systemMessage": "You are a health check. Reply with OK only.",
          "maxIterations": 1
        }
      },
      "onError": "continueRegularOutput",
      "alwaysOutputData": true,
      "position": [
        880,
        300
      ],
      "id": "96a58520-65ae-548a-ac2f-0b41d004933f"
    },
    {
      "name": "Health model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1.2,
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "id",
          "value": "gpt-4.1-mini"
        },
        "options": {
          "temperature": 0,
          "timeout": 8000,
          "maxRetries": 0
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "openAiCourse0001",
          "name": "OpenAI (.env)"
        }
      },
      "position": [
        880,
        520
      ],
      "id": "5aa10812-b13e-5bae-831e-7ccd24e72e62"
    },
    {
      "name": "Summarize",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "jsCode": "const data_api = $('Check data API').first().json.status === 'ok';\nconst faq = Array.isArray($('Check FAQ').first().json.results);\nconst llm = /ok/i.test(String($('Check LLM').first().json.output ?? ''));\nconst checks = { data_api, faq, llm };\nconst failed = Object.entries(checks).filter(([, good]) => !good).map(([name]) => name);\nconst status = failed.length === 0 ? 'ok' : (data_api || llm ? 'degraded' : 'down');\nreturn [{ json: { status, checks, failed, seconds: Math.round((Date.now() - $('Start').first().json.t0) / 100) / 10 } }];"
      },
      "position": [
        1100,
        300
      ],
      "id": "54ee87ba-881d-5ad1-a032-1262876fdd48"
    },
    {
      "name": "Send status",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ $json }}",
        "options": {}
      },
      "position": [
        1320,
        300
      ],
      "id": "2340a4f9-d3c9-5717-ad49-b782bcd9f808"
    }
  ],
  "connections": {
    "Health model": {
      "ai_languageModel": [
        [
          {
            "node": "Check LLM",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Health webhook": {
      "main": [
        [
          {
            "node": "Start",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Start": {
      "main": [
        [
          {
            "node": "Check data API",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check data API": {
      "main": [
        [
          {
            "node": "Check FAQ",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check FAQ": {
      "main": [
        [
          {
            "node": "Check LLM",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check LLM": {
      "main": [
        [
          {
            "node": "Summarize",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Summarize": {
      "main": [
        [
          {
            "node": "Send status",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  }
}