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使用GPT-4和DALL-E在UI基础上实现自动化LinkedIn内容创建

高级

这是一个Content Creation, Multimodal AI领域的自动化工作流,包含 23 个节点。主要使用 Webhook, HttpRequest, Agent, RespondToWebhook, ChainLlm 等节点。 基于AI的LinkedIn内容生成器(OpenAI GPT-4和DALL-E)

前置要求
  • HTTP Webhook 端点(n8n 会自动生成)
  • 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": "Fd1PvKuULAbZsQuf",
  "meta": {
    "instanceId": "1dcd9ef6d607f38b819b26a2c4dbd06dac0f27a5f67d658e0aebc81336da332e",
    "templateId": "4968",
    "templateCredsSetupCompleted": true
  },
  "name": "使用 GPT-4 和 DALL-E 在 UI 基础上实现自动化 LinkedIn 内容创建",
  "tags": [
    {
      "id": "d6uTHkmw5JpIUCo4",
      "name": "weweb-version",
      "createdAt": "2025-07-10T11:32:42.142Z",
      "updatedAt": "2025-07-10T11:32:42.142Z"
    }
  ],
  "nodes": [
    {
      "id": "f6716480-5a8c-4f84-9e91-b672b388d4bc",
      "name": "OpenAI 聊天模型",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        1120,
        -260
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "0h4i5YzdkNENbxn7",
          "name": "OpenAi variable"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "06f17fd9-21cf-4540-a3c3-44f0f9c87e2a",
      "name": "结构化输出解析器",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
        1320,
        -240
      ],
      "parameters": {
        "jsonSchemaExample": "[{\n \"title\": \"AI as Your First Content Hire: Why Founders Shouldn't Wait to Outsource Creation\",\n            \"rationale\": \"Most solopreneurs delay content scaling because they think hiring a ghostwriter is the next step — but AI can handle 80% with proper systems. This shifts content from a creative bottleneck to a scalable growth lever.\",\n            \"hook\": \"Ghostwriters are outdated. Train GPT once, and it ships LinkedIn gold in your voice daily. Welcome to hands-free thought leadership.\"\n          }]"
      },
      "typeVersion": 1.2
    },
    {
      "id": "3eefe0fd-b856-4b43-ae29-df4876c6545e",
      "name": "内容创建器",
      "type": "@n8n/n8n-nodes-langchain.chainLlm",
      "position": [
        1080,
        160
      ],
      "parameters": {
        "text": "=You are a linkedin content creator and copywriter. Given the title {{ $json.body.title }}, the rationale {{ $json.body.rationale }}, and suggested hook: {{ $json.body.hook }}. Generate text content for a linkedin post. Also describe a suitable image for the post.",
        "batching": {},
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 1.7
    },
    {
      "id": "1318cc36-eee8-46f7-9a56-37d9d7cb9a35",
      "name": "OpenAI 聊天模型1",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        1060,
        400
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "0h4i5YzdkNENbxn7",
          "name": "OpenAi variable"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "2e59bfdc-e691-4d13-824a-10ab0d5e935c",
      "name": "结构化输出解析器1",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
        1228,
        380
      ],
      "parameters": {
        "jsonSchemaExample": "{\n  \"post title\": \"Exciting New Feature Launch 🚀\",\n  \"post content\": \"After months of collaboration, testing, and fine-tuning, we're thrilled to introduce our latest product feature: Smart Insights. It helps users uncover meaningful patterns in their data with just a few clicks. This wouldn't have been possible without our incredible team and supportive community. We're excited for what's next — and we'd love your feedback!\",\n  \"image description\": \"A laptop screen showcasing the new Smart Insights dashboard with colorful charts and graphs, surrounded by a team clapping in the background.\"\n}"
      },
      "typeVersion": 1.2
    },
    {
      "id": "dcd07c39-6727-479b-bc65-33dcace9bd82",
      "name": "标签生成器 /SEO",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "disabled": true,
      "position": [
        1456,
        260
      ],
      "parameters": {
        "text": "=You are an SEO specialist for LinkedIn. Your task is to generate highly relevant and effective hashtags for the following post. Consider the post's content, target audience, and current LinkedIn trends to maximize visibility and engagement.\n\n<post_title>{{ $json.output['post title'] }}</post_title>\n<post_content>{{ $json.output['post content'] }}</post_content>\n\nPlease generate:\n1. **3-5 broad, high-volume hashtags** (e.g., #AI, #Marketing, #Business)\n2. **3-5 niche-specific hashtags** that are directly relevant to the post's core topic (e.g., #SocialMediaAutomation, #ContentCreationAI, #LinkedInMarketingTips)\n3. **1-2 trending/topical hashtags** if applicable (e.g., #FutureOfWork, #DigitalTransformation)\n\nPresent them as a comma-separated list.",
        "options": {},
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 2
    },
    {
      "id": "08fcc303-b0ba-4c95-9075-c141c93c6355",
      "name": "OpenAI聊天模型2",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        1484,
        480
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "0h4i5YzdkNENbxn7",
          "name": "OpenAi variable"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "b33b1379-b258-4213-9496-f0c7d5750421",
      "name": "结构化输出解析器2",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
        1604,
        480
      ],
      "parameters": {
        "jsonSchemaExample": "{\n  \"post title\": \"Exciting New Feature Launch 🚀\",\n  \"post content\": \"After months of collaboration, testing, and fine-tuning, we're thrilled to introduce our latest product feature: Smart Insights. It helps users uncover meaningful patterns in their data with just a few clicks. This wouldn't have been possible without our incredible team and supportive community. We're excited for what's next — and we'd love your feedback!\",\n  \"image description\": \"A laptop screen showcasing the new Smart Insights dashboard with colorful charts and graphs, surrounded by a team clapping in the background.\",\n\"Hashtags\":[\"#AI\",\"#Automation\"]\n}"
      },
      "typeVersion": 1.2
    },
    {
      "id": "841270d3-9773-485e-a445-0a5caa1cd544",
      "name": "响应 Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        1580,
        -540
      ],
      "parameters": {
        "options": {},
        "respondWith": "json",
        "responseBody": "={{ $json.output }}"
      },
      "typeVersion": 1.3
    },
    {
      "id": "3309ad70-6683-4a95-9f74-7388353992f6",
      "name": "响应 Webhook1",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        1832,
        260
      ],
      "parameters": {
        "options": {},
        "respondWith": "allIncomingItems"
      },
      "typeVersion": 1.3
    },
    {
      "id": "da0ef4de-963e-40b4-ba39-ba7f6f7fa54f",
      "name": "HTTP 请求",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1080,
        1080
      ],
      "parameters": {
        "url": "https://api.openai.com/v1/images/generations",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "authentication": "predefinedCredentialType",
        "bodyParameters": {
          "parameters": [
            {
              "name": "model",
              "value": "dall-e-3"
            },
            {
              "name": "prompt",
              "value": "={{ $json.body.imgDescription }}"
            },
            {
              "name": "size",
              "value": "1024x1024"
            },
            {
              "name": "response_format",
              "value": "b64_json"
            }
          ]
        },
        "nodeCredentialType": "openAiApi"
      },
      "credentials": {
        "openAiApi": {
          "id": "0h4i5YzdkNENbxn7",
          "name": "OpenAi variable"
        },
        "httpBearerAuth": {
          "id": "ecAeX9GIMwaaElot",
          "name": "Joyce's OpenAI test"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "7e70feb1-1341-4673-9676-d93c791c29b7",
      "name": "响应 Webhook2",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        1300,
        1080
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1.3
    },
    {
      "id": "ec50678d-d47a-4435-8665-f390dc409447",
      "name": "生成带标签的帖子",
      "type": "n8n-nodes-base.webhook",
      "position": [
        860,
        260
      ],
      "webhookId": "691a4b8d-542c-4d58-af2d-6851c2ba0edf",
      "parameters": {
        "path": "691a4b8d-542c-4d58-af2d-6851c2ba0edf",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "responseNode"
      },
      "typeVersion": 2
    },
    {
      "id": "b69486be-f649-439a-a851-888945bb333d",
      "name": "生成 6 个主题",
      "type": "n8n-nodes-base.webhook",
      "position": [
        780,
        -520
      ],
      "webhookId": "4aebedf5-666f-40a8-925c-5ce8a5a6b967",
      "parameters": {
        "path": "4aebedf5-666f-40a8-925c-5ce8a5a6b967",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "responseNode"
      },
      "typeVersion": 2
    },
    {
      "id": "343f3302-b180-42b1-888a-98245a331409",
      "name": "生成图片",
      "type": "n8n-nodes-base.webhook",
      "position": [
        860,
        1080
      ],
      "webhookId": "61b02992-5fde-4dd6-a7f9-8edc50e1f6c6",
      "parameters": {
        "path": "61b02992-5fde-4dd6-a7f9-8edc50e1f6c6",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "responseNode"
      },
      "typeVersion": 2
    },
    {
      "id": "46433d24-5145-484c-b75e-df8db830a2e4",
      "name": "便签",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        360,
        -800
      ],
      "parameters": {
        "width": 360,
        "height": 660,
        "content": "## 步骤 1 - 生成主题"
      },
      "typeVersion": 1
    },
    {
      "id": "9f2bdded-b0ae-490a-ab58-39618f3b3c1d",
      "name": "内容主题生成器",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        1140,
        -540
      ],
      "parameters": {
        "text": "={{ $json.body.prompt }}",
        "options": {},
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 2
    },
    {
      "id": "58361897-236b-46d7-8f73-3be0e1a1f9d5",
      "name": "便签 1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1860,
        -680
      ],
      "parameters": {
        "width": 380,
        "height": 520,
        "content": "## 输出"
      },
      "typeVersion": 1
    },
    {
      "id": "e55b4a55-8b7b-445b-af09-70611a05cac7",
      "name": "便签 2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        420,
        -20
      ],
      "parameters": {
        "color": 4,
        "width": 380,
        "height": 860,
        "content": "## 步骤 2 - 生成帖子及相关标签"
      },
      "typeVersion": 1
    },
    {
      "id": "1797d890-d60b-43e8-84d2-cab481440df7",
      "name": "便签 3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        360,
        -1260
      ],
      "parameters": {
        "color": 3,
        "width": 1020,
        "height": 320,
        "content": "## 为什么是 3 个 Webhook?TL;DR:为了让用户完全控制 AI 输出"
      },
      "typeVersion": 1
    },
    {
      "id": "3861ae5e-7bed-4c90-a81c-686be1fe2097",
      "name": "便签 4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2080,
        140
      ],
      "parameters": {
        "color": 4,
        "width": 460,
        "height": 400,
        "content": "## 输出"
      },
      "typeVersion": 1
    },
    {
      "id": "9f2ef103-a790-43f8-b176-610ca2413686",
      "name": "便签 5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        340,
        940
      ],
      "parameters": {
        "color": 5,
        "width": 460,
        "height": 800,
        "content": "## 步骤 3 - 生成图片"
      },
      "typeVersion": 1
    },
    {
      "id": "1fa23c8c-542f-4ba6-88ff-8c93093b7621",
      "name": "便签6",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1580,
        960
      ],
      "parameters": {
        "color": 5,
        "width": 460,
        "height": 480,
        "content": "## 输出"
      },
      "typeVersion": 1
    }
  ],
  "active": true,
  "pinData": {},
  "settings": {},
  "versionId": "1dfbcd16-3799-4bf6-aeea-f1db4b006d5b",
  "connections": {
    "HTTP Request": {
      "main": [
        [
          {
            "node": "Respond to Webhook2",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate image": {
      "main": [
        [
          {
            "node": "HTTP Request",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Content creator": {
      "main": [
        [
          {
            "node": "Hashtag generator /SEO",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate 6 topics": {
      "main": [
        [
          {
            "node": "Content topic generator",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Content topic generator",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model1": {
      "ai_languageModel": [
        [
          {
            "node": "Content creator",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model2": {
      "ai_languageModel": [
        [
          {
            "node": "Hashtag generator /SEO",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Respond to Webhook1": {
      "main": [
        []
      ]
    },
    "Hashtag generator /SEO": {
      "main": [
        [
          {
            "node": "Respond to Webhook1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Content topic generator": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Structured Output Parser": {
      "ai_outputParser": [
        [
          {
            "node": "Content topic generator",
            "type": "ai_outputParser",
            "index": 0
          }
        ]
      ]
    },
    "Structured Output Parser1": {
      "ai_outputParser": [
        [
          {
            "node": "Content creator",
            "type": "ai_outputParser",
            "index": 0
          }
        ]
      ]
    },
    "Structured Output Parser2": {
      "ai_outputParser": [
        [
          {
            "node": "Hashtag generator /SEO",
            "type": "ai_outputParser",
            "index": 0
          }
        ]
      ]
    },
    "Generate post with hashtags": {
      "main": [
        [
          {
            "node": "Content creator",
            "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?

高级 - 内容创作, 多模态 AI

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
高级
节点数量23
分类2
节点类型8
难度说明

适合高级用户,包含 16+ 个节点的复杂工作流

外部链接
在 n8n.io 查看

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