agents/n8n-bale-publicchat-file-fetch/json/Bale Metro File Agent (client-auth demo).json

{
  "name": "Bale Metro File Agent (client-auth demo)",
  "nodes": [
    {
      "parameters": {
        "options": {}
      },
      "id": "6bb427a1-bb35-4742-93e6-ebb320950224",
      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "typeVersion": 1.1,
      "position": [
        3344,
        384
      ],
      "webhookId": "fdae82fa-cb2d-4d9a-83ba-4ae9bddd0a6e"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://api.bazaarlink.ai/v1/chat/completions",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "Bearer sk-bl-RszuRzm4SBYwRapwenmPDyHMNZnxVkZ3w8UxtNPArWTFos23"
            },
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ model: \"auto:free\", messages: [ { role: \"system\", content: \"You extract a single short search keyword describing the file the user wants. IMPORTANT: the files you are searching are Bale bot messages with Persian (Farsi) captions and filenames -- no matter what language the user writes in, output the keyword translated into a plausible Persian word likely to appear in that caption (e.g. a request for 'the metro map' should become the keyword 'نقشه' or 'خطوط', not 'map'). Reply with ONLY compact JSON like {\\\"keyword\\\":\\\"خطوط\\\"}. No prose, no markdown fences.\" }, { role: \"user\", content: $json.chatInput } ] }) }}",
        "options": {}
      },
      "id": "47b99f54-f43e-4a16-b281-5a20bf8150a5",
      "name": "Parse request (LLM)",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        3792,
        384
      ]
    },
    {
      "parameters": {
        "jsCode": "let raw = $input.first().json.choices[0].message.content.trim();\nraw = raw.replace(/^```json\\s*/i, '').replace(/^```\\s*/i, '').replace(/```\\s*$/i, '');\nconst parsed = JSON.parse(raw);\nreturn [{ json: parsed }];"
      },
      "id": "1156dfdb-4cae-49fb-92c2-cfaa35ff86e0",
      "name": "Extract keyword",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        4016,
        384
      ]
    },
    {
      "parameters": {
        "command": "=python3 /mnt/storage/bale-downloads/fetch_metro_smart.py \"{{ $json.keyword }}\""
      },
      "id": "ede1882a-c5df-4074-a1a0-4bfac8dca00e",
      "name": "Run client-auth fetch",
      "type": "n8n-nodes-base.executeCommand",
      "typeVersion": 1,
      "position": [
        4240,
        384
      ],
      "notes": "Runs fetch_metro_smart.py, passing the LLM-parsed keyword through. The script searches this bot chat's full history for a document whose filename/caption matches the keyword -- it does NOT send a new command, it decides from what's already there."
    },
    {
      "parameters": {
        "jsCode": "const result = JSON.parse($input.first().json.stdout);\nconst files = result.files || [];\nreturn [{ json: {\n  found: files.length,\n  files,\n  summary: files.length\n    ? `Found ${files.length} file(s):\\n` + files.join('\\n')\n    : 'No file in this chat\\'s history matched that description.'\n} }];"
      },
      "id": "18f2ad30-f652-45a1-a825-b57183d498ca",
      "name": "Parse results",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        4464,
        384
      ]
    },
    {
      "parameters": {
        "fileSelector": "={{ $json.files[0] }}",
        "options": {}
      },
      "id": "95ca5a02-c89c-4b90-b476-69f1b3382de9",
      "name": "Save to disk",
      "type": "n8n-nodes-base.readWriteFile",
      "typeVersion": 1,
      "position": [
        4688,
        384
      ],
      "notes": "The file is already on disk (the Python script wrote it). This node just reads it back so n8n shows the binary preview + Download button, same as the original Bot-API demo -- purely visual."
    }
  ],
  "pinData": {},
  "connections": {
    "When chat message received": {
      "main": [
        [
          {
            "node": "Parse request (LLM)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Parse request (LLM)": {
      "main": [
        [
          {
            "node": "Extract keyword",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract keyword": {
      "main": [
        [
          {
            "node": "Run client-auth fetch",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Run client-auth fetch": {
      "main": [
        [
          {
            "node": "Parse results",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Parse results": {
      "main": [
        [
          {
            "node": "Save to disk",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "binaryMode": "separate",
    "availableInMCP": false
  },
  "versionId": "a1d3946d-dfda-478a-93eb-e11cb88d4722",
  "meta": {
    "instanceId": "a8618b8efe9a0b8c68300d12dc12f140ace3ebe855b80198b7819ca3e0922fe9"
  },
  "nodeGroups": [],
  "id": "L9iWiHBHGxQZDvGU",
  "tags": []
}