自动化 YouTube 视频转博客文章，集成 Gemini AI 转录

• •HTTP Webhook 端点（n8n 会自动生成）
• •Google Gemini API Key

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      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
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      "parameters": {
        "text": "=Please create a blog post from the following video transcript. Identify the key themes, structure the content logically, and generate a title, category, and tags.\n\nTranscript:\n{{ $json.content.parts[0].text }}",
        "options": {
          "systemMessage": "=You are an expert content strategist and editor. Your task is to transform a raw video transcript into a well-structured and engaging blog post.\n\nYou must adhere to the following rules:\n1.  Your entire response must be a single JSON object enclosed in a markdown code block (```json ... ```).\n2.  Do NOT include any introductory phrases, explanations, apologies, or any text whatsoever outside of the JSON markdown block.\n3.  The tone should be informative, clear, and engaging, transforming the conversational transcript into polished written content.\n4.  The language of all generated text in the output JSON must match the primary language of the input transcript.\n5.  The JSON object must have this exact structure:\n{\n  \"category\": \"A single, top-level category based on the content.\",\n  \"tags\": [\n    \"An array of 3 to 5 relevant, lowercase string tags.\"\n  ],\n  \"title\": \"A creative, compelling title for the blog post.\",\n  \"short_description\": \"A concise, one-to-two sentence summary of the blog post, optimized for search engines (around 150-160 characters).\",\n  \"body\": \"The full blog post content formatted in HTML, including <h1>, <h2>, and <p> tags.\"\n}\n"
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        "promptType": "define",
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      "name": "Google Gemini 聊天模型",
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      "name": "多表：您可以连接多个表以实现有组织的数据结构",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
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        "autoFix": true,
        "jsonSchemaExample": "{\n  \"category\": \"Travel\",\n  \"tags\": [\n    \"breda\",\n    \"summer travel\",\n    \"netherlands\",\n    \"city trip\",\n    \"north brabant\"\n  ],\n  \"title\": \"Soaking Up the Last Days of Summer: A Weekend Guide to Breda\",\n  \"short_description\": \"Don't let summer slip away! Discover the best things to do in Breda for a perfect late-summer weekend, from historic sites to vibrant terrace cafes.\",\n  \"body\": \"<h1>Soaking Up the Last Days of Summer: A Weekend Guide to Breda</h1><p>As the golden light of late August settles over the Netherlands, there's no better place to capture the final, perfect moments of the season than Breda. This historic city in North Brabant, with its relaxed atmosphere and beautiful scenery, is the ideal destination for a memorable summer weekend. Here’s how to make the most of it.</p><h2>Morning: History and Coffee on the Grote Markt</h2><p>Start your day in the heart of the city, the Grote Markt. The square is dominated by the impressive Grote Kerk (Great Church), a must-see landmark. After exploring the church, find a spot at one of the many bustling terrace cafes. Ordering a coffee and watching the city wake up is a quintessential Breda experience.</p><h2>Afternoon: A Royal Stroll in Valkenberg Park</h2><p>Escape the midday heat with a walk through the shady paths of Valkenberg Park. This stunning park, once the garden of the Castle of Breda, is filled with ancient trees, fountains, and remnants of the old city fortifications. It's the perfect place for a picnic or simply to relax with a book and enjoy the sunshine.</p><h2>Evening: Sunset by the Harbor</h2><p>As the day winds down, head to Breda's charming harbor (Haven). The waterfront comes alive in the evening, with boats gently bobbing and restaurant lights reflecting on the water. Enjoy dinner with a view or simply take a stroll along the dock to watch a beautiful late-summer sunset.</p>\"\n}"
      },
      "typeVersion": 1.3
    },
    {
      "id": "e81db094-9445-4953-81c6-45ddf7c8f68f",
      "name": "下载 YouTube 音频",
      "type": "n8n-nodes-base.executeCommand",
      "position": [
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      ],
      "parameters": {
        "command": "=yt-dlp -x --audio-format mp3 -o output-{{ $json.now_unix }}.mp3 '{{ $('Get Youtube Url').item.json.body.videoUrl }}'\n"
      },
      "typeVersion": 1
    },
    {
      "id": "362d280b-bf10-4ad6-9d9a-2274ed2747fb",
      "name": "读取输出 MP3 二进制数据",
      "type": "n8n-nodes-base.readWriteFile",
      "position": [
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      "parameters": {
        "options": {},
        "fileSelector": "=output-{{ $('Get Time').item.json.now_unix }}.mp3"
      },
      "typeVersion": 1
    },
    {
      "id": "d37ff911-4ebf-4acc-9d66-1be48921d71a",
      "name": "回复博客文章",
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      "parameters": {
        "options": {}
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      "typeVersion": 1.4
    },
    {
      "id": "09d024f5-9c8e-4332-bbb6-5a58d735152d",
      "name": "获取 YouTube 网址",
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      "position": [
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      "webhookId": "57fddbda-a118-4546-a223-8e91a7d53ff6",
      "parameters": {
        "path": "57fddbda-a118-4546-a223-8e91a7d53ff6",
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        "responseMode": "responseNode"
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    {
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      "name": "转录录音",
      "type": "@n8n/n8n-nodes-langchain.googleGemini",
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      "parameters": {
        "modelId": {
          "__rl": true,
          "mode": "list",
          "value": "models/gemini-1.5-flash",
          "cachedResultName": "models/gemini-1.5-flash"
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        "options": {},
        "resource": "audio",
        "inputType": "binary"
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      "credentials": {
        "googlePalmApi": {
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          "name": "Google Gemini(PaLM) Api account"
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      },
      "typeVersion": 1
    },
    {
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      "name": "将视频网址添加到输出",
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        "assignments": {
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              "name": "videoUrl",
              "type": "string",
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            },
            {
              "id": "b441eb26-15bb-43c6-afea-fa4733a100b5",
              "name": "fulltext",
              "type": "string",
              "value": "={{ $('Transcribe a recording').item.json.content.parts[0].text }}"
            }
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        "includeOtherFields": true
      },
      "typeVersion": 3.4
    },
    {
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      "parameters": {
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        "width": 464,
        "height": 336,
        "content": "## 获取 YouTube 视频音频"
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      "name": "获取时间",
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              "type": "number",
              "value": "={{ new Date().getTime() }}"
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        "width": 512,
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        "content": "## 准备博客文章"
      },
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