{
  "name": "answer · 69 Lab 02 challenge (editor fork-join)",
  "nodes": [
    {
      "name": "Notice webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        0,
        300
      ],
      "parameters": {
        "httpMethod": "POST",
        "path": "my-notice",
        "responseMode": "responseNode",
        "options": {}
      }
    },
    {
      "name": "Has facts?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        200,
        300
      ],
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "id": "c0",
              "leftValue": "={{ $json.body.facts }}",
              "rightValue": "",
              "operator": {
                "type": "string",
                "operation": "notEmpty",
                "singleValue": true
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      }
    },
    {
      "name": "Reject empty",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        420,
        520
      ],
      "parameters": {
        "respondWith": "json",
        "responseBody": "{ \"error\": \"facts are required\" }",
        "options": {
          "responseCode": 400
        }
      }
    },
    {
      "name": "Write draft",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        420,
        300
      ],
      "parameters": {
        "method": "POST",
        "url": "http://localhost:5678/webhook/my-writer",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ request: $('Notice webhook').first().json.body.request, facts: $('Notice webhook').first().json.body.facts }) }}",
        "options": {
          "timeout": 60000
        }
      }
    },
    {
      "name": "Review draft",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        640,
        300
      ],
      "parameters": {
        "method": "POST",
        "url": "http://localhost:5678/webhook/my-reviewer",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ facts: $('Notice webhook').first().json.body.facts, draft: $json.draft }) }}",
        "options": {
          "timeout": 60000
        }
      }
    },
    {
      "name": "Passed?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        1080,
        300
      ],
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "id": "c0",
              "leftValue": "={{ $json.passed }}",
              "rightValue": "",
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      }
    },
    {
      "name": "Approved",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        1300,
        160
      ],
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "a0",
              "name": "route",
              "value": "게시 가능",
              "type": "string"
            },
            {
              "id": "a1",
              "name": "published",
              "value": true,
              "type": "boolean"
            },
            {
              "id": "a2",
              "name": "rounds",
              "value": 1,
              "type": "number"
            },
            {
              "id": "a3",
              "name": "notice",
              "value": "={{ $('Write draft').first().json.draft }}",
              "type": "string"
            },
            {
              "id": "a4",
              "name": "codes",
              "value": "={{ [] }}",
              "type": "array"
            }
          ]
        },
        "options": {}
      }
    },
    {
      "name": "Revise draft",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1300,
        400
      ],
      "parameters": {
        "method": "POST",
        "url": "http://localhost:5678/webhook/my-writer",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ request: $('Notice webhook').first().json.body.request, facts: $('Notice webhook').first().json.body.facts, previous_draft: $('Write draft').first().json.draft, feedback: $('Review draft').first().json.issues.map(i => i.code + ': ' + i.detail).join('\\n') }) }}",
        "options": {
          "timeout": 60000
        }
      }
    },
    {
      "name": "Review again",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1520,
        400
      ],
      "parameters": {
        "method": "POST",
        "url": "http://localhost:5678/webhook/my-reviewer",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ facts: $('Notice webhook').first().json.body.facts, draft: $json.draft }) }}",
        "options": {
          "timeout": 60000
        }
      }
    },
    {
      "name": "Passed again?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        1740,
        400
      ],
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "id": "c0",
              "leftValue": "={{ $json.passed }}",
              "rightValue": "",
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      }
    },
    {
      "name": "Approved after revision",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        1960,
        300
      ],
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "a0",
              "name": "route",
              "value": "수정 후 게시 가능",
              "type": "string"
            },
            {
              "id": "a1",
              "name": "published",
              "value": true,
              "type": "boolean"
            },
            {
              "id": "a2",
              "name": "rounds",
              "value": 2,
              "type": "number"
            },
            {
              "id": "a3",
              "name": "notice",
              "value": "={{ $('Revise draft').first().json.draft }}",
              "type": "string"
            },
            {
              "id": "a4",
              "name": "codes",
              "value": "={{ [] }}",
              "type": "array"
            },
            {
              "id": "a5",
              "name": "first_codes",
              "value": "={{ $('Review draft').first().json.codes }}",
              "type": "array"
            }
          ]
        },
        "options": {}
      }
    },
    {
      "name": "Needs person",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        1960,
        520
      ],
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "a0",
              "name": "route",
              "value": "담당자 확인",
              "type": "string"
            },
            {
              "id": "a1",
              "name": "published",
              "value": false,
              "type": "boolean"
            },
            {
              "id": "a2",
              "name": "rounds",
              "value": 2,
              "type": "number"
            },
            {
              "id": "a3",
              "name": "notice",
              "value": "={{ $('Revise draft').first().json.draft ?? '' }}",
              "type": "string"
            },
            {
              "id": "a4",
              "name": "codes",
              "value": "={{ $json.codes ?? [] }}",
              "type": "array"
            },
            {
              "id": "a5",
              "name": "first_codes",
              "value": "={{ $('Review draft').first().json.codes }}",
              "type": "array"
            }
          ]
        },
        "options": {}
      }
    },
    {
      "name": "Send result",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        3060,
        300
      ],
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ $json }}",
        "options": {}
      }
    },
    {
      "name": "Final notice",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        2180,
        200
      ],
      "parameters": {
        "jsCode": "// One place for both approved paths.\nreturn [{ json: $json }];"
      }
    },
    {
      "name": "Make title",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 3.1,
      "position": [
        2400,
        80
      ],
      "parameters": {
        "promptType": "define",
        "text": "={{ $json.notice }}",
        "options": {
          "systemMessage": "You write the subject line of a company mail for this Korean IT notice: at most 40 characters, Korean, no brackets, no information that is not in the notice. Return only the subject line.",
          "maxIterations": 2
        }
      }
    },
    {
      "name": "Title model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1.2,
      "position": [
        2360,
        -120
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "id",
          "value": "gpt-4.1-mini"
        },
        "options": {
          "temperature": 0
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "openAiCourse0001",
          "name": "OpenAI (.env)"
        }
      }
    },
    {
      "name": "Make chat message",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 3.1,
      "position": [
        2400,
        320
      ],
      "parameters": {
        "promptType": "define",
        "text": "={{ $json.notice }}",
        "options": {
          "systemMessage": "You rewrite this Korean IT notice as a short messenger message: at most 2 lines and 120 characters, Korean. Keep every date and time exactly as written. Add nothing that is not in the notice. Return only the message.",
          "maxIterations": 2
        }
      }
    },
    {
      "name": "Chat model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1.2,
      "position": [
        2360,
        520
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "id",
          "value": "gpt-4.1-mini"
        },
        "options": {
          "temperature": 0
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "openAiCourse0001",
          "name": "OpenAI (.env)"
        }
      }
    },
    {
      "name": "Join editors",
      "type": "n8n-nodes-base.merge",
      "typeVersion": 3,
      "position": [
        2620,
        200
      ],
      "parameters": {
        "numberInputs": 2
      }
    },
    {
      "name": "Combine",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        2840,
        200
      ],
      "parameters": {
        "jsCode": "// Join the two editor results (n8n runs the two branches one after the other) with the approved notice.\nconst base = $('Final notice').first().json;\nconst [first, second] = $input.all().map(item => String(item.json.output ?? '').trim());\nconst title = $('Make title').first().json.output ?? first;\nconst chat = $('Make chat message').first().json.output ?? second;\nreturn [{ json: { ...base, title: String(title).trim(), chat: String(chat).trim(), ...(base.steps ? { steps: [...base.steps, 'editor'] } : {}) } }];"
      }
    }
  ],
  "connections": {
    "Notice webhook": {
      "main": [
        [
          {
            "node": "Has facts?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Has facts?": {
      "main": [
        [
          {
            "node": "Write draft",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Reject empty",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Write draft": {
      "main": [
        [
          {
            "node": "Review draft",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Review draft": {
      "main": [
        [
          {
            "node": "Passed?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Passed?": {
      "main": [
        [
          {
            "node": "Approved",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Revise draft",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Revise draft": {
      "main": [
        [
          {
            "node": "Review again",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Review again": {
      "main": [
        [
          {
            "node": "Passed again?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Passed again?": {
      "main": [
        [
          {
            "node": "Approved after revision",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Needs person",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Needs person": {
      "main": [
        [
          {
            "node": "Send result",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Approved": {
      "main": [
        [
          {
            "node": "Final notice",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Approved after revision": {
      "main": [
        [
          {
            "node": "Final notice",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Final notice": {
      "main": [
        [
          {
            "node": "Make title",
            "type": "main",
            "index": 0
          },
          {
            "node": "Make chat message",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Title model": {
      "ai_languageModel": [
        [
          {
            "node": "Make title",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Chat model": {
      "ai_languageModel": [
        [
          {
            "node": "Make chat message",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Make title": {
      "main": [
        [
          {
            "node": "Join editors",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Make chat message": {
      "main": [
        [
          {
            "node": "Join editors",
            "type": "main",
            "index": 1
          }
        ]
      ]
    },
    "Join editors": {
      "main": [
        [
          {
            "node": "Combine",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Combine": {
      "main": [
        [
          {
            "node": "Send result",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  }
}