agents/n8n-Bale-file-fetch/json/Bale File Agent (demo).json

{
  "name": "Bale File Agent (demo)",
  "nodes": [
    {
      "parameters": {
        "options": {}
      },
      "id": "90a5fd0c-27ab-49be-ad12-87e53165df6a",
      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "typeVersion": 1.1,
      "position": [
        -80,
        96
      ],
      "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 change-me-please"
            },
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ model: \"auto:free\", messages: [ { role: \"system\", content: \"You extract a file_type (pdf or image) and a keyword from a user's request. Reply with ONLY compact JSON like {\\\"file_type\\\":\\\"pdf\\\",\\\"keyword\\\":\\\"devops\\\"}. No prose, no markdown fences.\" }, { role: \"user\", content: $json.chatInput } ] }) }}",
        "options": {}
      },
      "id": "64211cf6-e042-4e8b-a5ac-62d4e172c588",
      "name": "Parse command (LLM)",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        368,
        96
      ]
    },
    {
      "parameters": {
        "jsCode": "let raw = $input.first().json.choices[0].message.content.trim();\n// strip markdown fences if the model adds them anyway\nraw = raw.replace(/^```json\\s*/i, '').replace(/^```\\s*/i, '').replace(/```\\s*$/i, '');\nconst filters = JSON.parse(raw);\nreturn [{ json: filters }];"
      },
      "id": "3aef64ed-d97c-4d23-b1d1-a06790ecf9f6",
      "name": "Extract filters",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        592,
        96
      ]
    },
    {
      "parameters": {
        "url": "https://tapi.bale.ai/YOUR_BOT_ID:your-Bale-token/getUpdates",
        "options": {}
      },
      "id": "639ac81a-f436-403c-8c4e-51ebb72b8547",
      "name": "Fetch Bale updates",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        592,
        336
      ],
      "notes": "getUpdates clears its queue on each call - if you run this twice in a row with no new channel activity, the second run comes back empty."
    },
    {
      "parameters": {
        "jsCode": "const filters = $('Extract filters').first().json;\nconst updates = $input.first().json.result || [];\n\nconst matches = [];\nfor (const u of updates) {\n  const msg = u.message || u.channel_post;\n  if (!msg) continue;\n\n  const isPdf = msg.document && (msg.document.mime_type || '').includes('pdf');\n  const isImage = !!msg.photo;\n  const caption = (msg.caption || msg.document?.file_name || '').toLowerCase();\n\n  const typeMatches =\n    (filters.file_type === 'pdf' && isPdf) ||\n    (filters.file_type === 'image' && isImage);\n  const keywordMatches = !filters.keyword || caption.includes(filters.keyword.toLowerCase());\n\n  if (typeMatches && keywordMatches) {\n    const fileId = isPdf ? msg.document.file_id : msg.photo[msg.photo.length - 1].file_id;\n    matches.push({ file_id: fileId, file_name: msg.document?.file_name || `${fileId}.bin`, caption, is_pdf: isPdf });\n  }\n}\nreturn matches.map(m => ({ json: m }));"
      },
      "id": "30f1df87-dce6-47c4-8110-51cfb5439feb",
      "name": "Filter matches",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        800,
        208
      ]
    },
    {
      "parameters": {
        "url": "=https://tapi.bale.ai/YOUR_BOT_ID:chnage-me-please/getFile?file_id={{ $json.file_id }}",
        "options": {}
      },
      "id": "3466c103-2079-4de3-b9a4-5fb1d034fa3a",
      "name": "Get file path",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1024,
        208
      ]
    },
    {
      "parameters": {
        "url": "=https://tapi.bale.ai/file/YOUR_BOT_ID:chnage-me-please/{{ $json.result.file_path }}",
        "options": {
          "response": {
            "response": {
              "responseFormat": "file"
            }
          }
        }
      },
      "id": "19a4caeb-3ea7-4386-8c26-caab0061c2e2",
      "name": "Download file",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1248,
        208
      ]
    },
    {
      "parameters": {
        "operation": "write",
        "fileName": "=/mnt/storage/bale-downloads/{{ $('Filter matches').item.json.file_name }}",
        "options": {}
      },
      "id": "eab3cb34-f7ae-48c3-8b87-842a1e5fb176",
      "name": "Save to disk",
      "type": "n8n-nodes-base.readWriteFile",
      "typeVersion": 1,
      "position": [
        1472,
        208
      ],
      "notes": "Change the folder path to wherever your n8n instance can write. Swap for a Google Drive node if you'd rather store there."
    }
  ],
  "pinData": {},
  "connections": {
    "When chat message received": {
      "main": [
        [
          {
            "node": "Parse command (LLM)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Parse command (LLM)": {
      "main": [
        [
          {
            "node": "Extract filters",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract filters": {
      "main": [
        [
          {
            "node": "Fetch Bale updates",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Fetch Bale updates": {
      "main": [
        [
          {
            "node": "Filter matches",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Filter matches": {
      "main": [
        [
          {
            "node": "Get file path",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get file path": {
      "main": [
        [
          {
            "node": "Download file",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Download file": {
      "main": [
        [
          {
            "node": "Save to disk",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "binaryMode": "separate",
    "availableInMCP": false
  },
  "versionId": "7098b660-f579-414b-bf83-6002d32cbff6",
  "meta": {
    "instanceId": "a8618b8efe9a0b8c68300d12dc12f140ace3ebe855b80198b7819ca3e0922fe9"
  },
  "nodeGroups": [],
  "id": "tG4eEba8ODCbAcfX",
  "tags": []
}