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通过Telegram使用ChatGPT-4o-mini提取自动化发票分析

中级

这是一个Invoice Processing, AI Summarization领域的自动化工作流,包含 12 个节点。主要使用 If, Code, Telegram, HttpRequest, Agent 等节点。 通过Telegram使用ChatGPT-4o-mini提取自动化发票分析

前置要求
  • Telegram Bot Token
  • 可能需要目标 API 的认证凭证
  • OpenAI API Key
工作流预览
可视化展示节点连接关系,支持缩放和平移
导出工作流
复制以下 JSON 配置到 n8n 导入,即可使用此工作流
{
  "id": "sBbL7CfgioXi9VJc",
  "meta": {
    "instanceId": "b91e510ebae4127f953fd2f5f8d40d58ca1e71c746d4500c12ae86aad04c1502"
  },
  "name": "通过 Telegram 使用 ChatGPT-4o-mini 提取自动化发票分析",
  "tags": [],
  "nodes": [
    {
      "id": "b6433fae-ab23-4504-bf1c-07d98177799e",
      "name": "Telegram 触发器",
      "type": "n8n-nodes-base.telegramTrigger",
      "position": [
        -464,
        32
      ],
      "webhookId": "11b31e8e-4b0b-47a3-ba82-b4ffea5e34ae",
      "parameters": {
        "updates": [
          "message"
        ],
        "additionalFields": {}
      },
      "typeVersion": 1.2
    },
    {
      "id": "e631a3ed-6930-4da7-a5dc-f33b4c852426",
      "name": "检查是否为文档",
      "type": "n8n-nodes-base.if",
      "position": [
        -304,
        32
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "1",
              "operator": {
                "type": "object",
                "operation": "exists"
              },
              "leftValue": "={{ $json.message.document }}",
              "rightValue": ""
            }
          ]
        }
      },
      "typeVersion": 2
    },
    {
      "id": "a22e54b3-e4e0-4b67-8e8f-ef9a5f163fdb",
      "name": "从 Telegram 获取文件",
      "type": "n8n-nodes-base.telegram",
      "position": [
        -128,
        -64
      ],
      "webhookId": "620221c5-ea8f-4c9e-bb04-b70114f27cb2",
      "parameters": {
        "fileId": "={{ $json.message.document.file_id }}",
        "resource": "file",
        "additionalFields": {}
      },
      "typeVersion": 1.2
    },
    {
      "id": "e93556dc-7af4-4e7d-9cb0-82aa0da39ed8",
      "name": "HTTP 请求 - 下载文件",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        32,
        -64
      ],
      "parameters": {
        "url": "=https://api.telegram.org/file/bot{{ $credentials.telegramApi.accessToken }}/{{ $json.result.file_path }}",
        "options": {
          "response": {
            "response": {
              "responseFormat": "file"
            }
          }
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "aebfd1a1-bb29-4dbe-af72-4a6e986d4f79",
      "name": "提取发票数据",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        176,
        -64
      ],
      "parameters": {
        "operation": "extractFromPDF"
      },
      "typeVersion": 1
    },
    {
      "id": "c9bf8764-2bc9-4861-b477-bbb60d516f34",
      "name": "AI Agent - 分析发票",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        320,
        -64
      ],
      "parameters": {
        "text": "=Analyze the following invoice text and extract key information:\n\n{{ $json.text }}\n\nProvide the following details:\n1. Invoice Number\n2. Invoice Date\n3. Vendor/Supplier Name\n4. Total Amount\n5. Currency\n6. Due Date\n7. Line Items (if available)\n8. Payment Status\n9. Any discrepancies or issues found\n\nFormat the response in a clear, structured manner.",
        "options": {
          "systemMessage": "You are an expert invoice analyst. Extract accurate information from invoices and identify any potential issues or discrepancies."
        },
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 1.7
    },
    {
      "id": "baead0ff-8676-4e77-9084-bd28484fc797",
      "name": "OpenAI 聊天模型",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        320,
        128
      ],
      "parameters": {
        "options": {
          "temperature": 0.2
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "OGYj7DgYv5GFLFZk",
          "name": "OpenAi account 2"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "c149851f-3c38-4827-b1e9-14dbdbdd9172",
      "name": "格式化响应",
      "type": "n8n-nodes-base.code",
      "position": [
        576,
        -64
      ],
      "parameters": {
        "jsCode": "const aiResponse = $input.first().json.output;\nconst originalMessage = $('Telegram Trigger').first().json;\n\nreturn {\n  json: {\n    chatId: originalMessage.message.chat.id,\n    analysis: aiResponse,\n    fileName: originalMessage.message.document?.file_name || 'Unknown',\n    timestamp: new Date().toISOString()\n  }\n};"
      },
      "typeVersion": 2
    },
    {
      "id": "b6c9a341-c390-4d8e-8ab7-ef7896bf87b4",
      "name": "发送分析结果到 Telegram",
      "type": "n8n-nodes-base.telegram",
      "position": [
        720,
        -64
      ],
      "webhookId": "c8fc2be4-fef6-4434-86a8-4630d8c9c3b4",
      "parameters": {
        "text": "=📄 *Invoice Analysis Complete*\n\n*File:* {{ $json.fileName }}\n*Analyzed at:* {{ $json.timestamp }}\n\n*Results:*\n{{ $json.analysis }}\n\n✅ Analysis completed successfully!",
        "chatId": "={{ $json.chatId }}",
        "additionalFields": {
          "parse_mode": "Markdown"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "267e3223-6e60-432e-bb6d-980c2821b0e5",
      "name": "发送错误消息",
      "type": "n8n-nodes-base.telegram",
      "position": [
        -128,
        112
      ],
      "webhookId": "b419141c-c0cc-42ba-a2af-6ff60bfa6ba6",
      "parameters": {
        "text": "❌ Please send a document file (PDF or image) to check the invoice.",
        "chatId": "={{ $json.message.chat.id }}",
        "additionalFields": {}
      },
      "typeVersion": 1.2
    },
    {
      "id": "2f8e4a85-0db5-421a-93c1-b5a5cc8c701c",
      "name": "便签",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1024,
        -256
      ],
      "parameters": {
        "width": 544,
        "height": 624,
        "content": "## 简介"
      },
      "typeVersion": 1
    },
    {
      "id": "80d92c1c-d7b6-47ae-8f9d-8520e61708a8",
      "name": "便签1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        512,
        112
      ],
      "parameters": {
        "color": 4,
        "width": 320,
        "height": 288,
        "content": "## 先决条件"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "8c2bf80d-d1f6-4b32-bd5a-cf0b88f24786",
  "connections": {
    "Format Response": {
      "main": [
        [
          {
            "node": "Send Analysis to Telegram",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Telegram Trigger": {
      "main": [
        [
          {
            "node": "Check if Document",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check if Document": {
      "main": [
        [
          {
            "node": "Get File from Telegram",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Send Error Message",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent - Analyze Invoice",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Extract Invoice Data": {
      "main": [
        [
          {
            "node": "AI Agent - Analyze Invoice",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get File from Telegram": {
      "main": [
        [
          {
            "node": "HTTP Request - Download File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "AI Agent - Analyze Invoice": {
      "main": [
        [
          {
            "node": "Format Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "HTTP Request - Download File": {
      "main": [
        [
          {
            "node": "Extract Invoice Data",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}
常见问题

如何使用这个工作流?

复制上方的 JSON 配置代码,在您的 n8n 实例中创建新工作流并选择「从 JSON 导入」,粘贴配置后根据需要修改凭证设置即可。

这个工作流适合什么场景?

中级 - 发票处理, AI 摘要总结

需要付费吗?

本工作流完全免费,您可以直接导入使用。但请注意,工作流中使用的第三方服务(如 OpenAI API)可能需要您自行付费。

工作流信息
难度等级
中级
节点数量12
分类2
节点类型9
难度说明

适合有一定经验的用户,包含 6-15 个节点的中等复杂度工作流

作者
Cheng Siong Chin

Cheng Siong Chin

@cschin

Prof. Cheng Siong CHIN serves as Chair Professor in Intelligent Systems Modelling and Simulation in Newcastle University, Singapore. His academic credentials include an M.Sc. in Advanced Control and Systems Engineering from The University of Manchester and a Ph.D. in Robotics from Nanyang Technological University.

外部链接
在 n8n.io 查看

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