video_collection.json

{
  "name": "视频剪藏工作流 Demo",
  "nodes": [
    {
      "parameters": {},
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        -800,
        -160
      ],
      "id": "01d13c16-a9d1-4124-9ef0-b3e95cdeda99",
      "name": "When clicking ‘Execute workflow’"
    },
    {
      "parameters": {
        "resource": "playlistItem",
        "operation": "getAll",
        "playlistId": "PLORDp40s58gMHecjJRjHQ4J3K23iMrGfd",
        "returnAll": true,
        "options": {}
      },
      "type": "n8n-nodes-base.youTube",
      "typeVersion": 1,
      "position": [
        -592,
        -160
      ],
      "id": "fab9b67d-707a-44a5-bcd9-d5f3b5325945",
      "name": "Get many playlist items",
      "credentials": {
        "youTubeOAuth2Api": {
          "id": "MKyqb2MEWF55chHe",
          "name": "YouTube account"
        }
      }
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "4c81e286-8f54-4fe3-980d-de801b8d04d0",
              "name": "videoname",
              "value": "={{ $json.snippet.title }}",
              "type": "string"
            },
            {
              "id": "ba8319e3-e4ba-4cbb-a115-5e9f3de5dc8b",
              "name": "url",
              "value": "=https://www.youtube.com/watch?v={{ $json.snippet.resourceId.videoId }}",
              "type": "string"
            },
            {
              "id": "c7f9de6d-63b7-41ef-bd0e-438190921c34",
              "name": "pubilsh_time",
              "value": "={{ $json.contentDetails.videoPublishedAt }}",
              "type": "string"
            },
            {
              "id": "fe8ad35d-35f1-4248-af6e-adb7e28ac419",
              "name": "videoId",
              "value": "={{ $json.snippet.resourceId.videoId }}",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        -368,
        -160
      ],
      "id": "db70c9c3-2a5f-4130-bcf2-63b945354aae",
      "name": "Edit Fields"
    },
    {
      "parameters": {
        "options": {}
      },
      "type": "n8n-nodes-base.splitInBatches",
      "typeVersion": 3,
      "position": [
        -80,
        -160
      ],
      "id": "26b80b65-59c5-4547-b990-80e469385cad",
      "name": "Loop Over Items"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "http://host.docker.internal:8081/add",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"url\": \"{{ $json.url }}\",\n  \"quality\": \"720p\",\n  \"format\": \"mp4\", \n  \"folder\": \"demo/assets\"\n}  ",
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.3,
      "position": [
        176,
        -144
      ],
      "id": "c67b8af3-0b94-4041-8e6b-78211d19f5d0",
      "name": "HTTP Request"
    },
    {
      "parameters": {
        "fileSelector": "=./n8ndata/downloads/demo/assets/{{ $('Loop Over Items').item.json.videoname }}.*.vtt",
        "options": {}
      },
      "type": "n8n-nodes-base.readWriteFile",
      "typeVersion": 1,
      "position": [
        1264,
        -128
      ],
      "id": "b8955f92-7d2e-480f-9013-41fb46dadbd7",
      "name": "Read/Write Files from Disk"
    },
    {
      "parameters": {
        "operation": "text",
        "options": {}
      },
      "type": "n8n-nodes-base.extractFromFile",
      "typeVersion": 1.1,
      "position": [
        1504,
        -128
      ],
      "id": "75e3ed32-8afb-4ef1-b487-387457cbc8b9",
      "name": "Extract from File"
    },
    {
      "parameters": {
        "promptType": "define",
        "text": "=字幕内容如下：{{ $json.data }}",
        "hasOutputParser": true,
        "options": {
          "systemMessage": "# Role\n你是一位专业的视频内容分析专家，擅长从冗长的视频字幕中提取核心观点，并将其整理成结构清晰、带标签分类、易于检索的摘要和二级大纲。\n\n# Task\n请阅读提供的视频字幕文件（包含时间戳），并按照以下固定模板生成内容：\n\n1. 内容标签：提取 3-5 个核心关键词作为标签（例如：#AI #n8n #自动化 #教程）。要求涵盖视频涉及的核心工具、技术领域和视频性质。\n2. 视频摘要：用一段话（约 150-200 字）高度概括视频的核心内容、逻辑流程以及最终结论。\n3. 亮点大纲（二级结构）：\n   - 一级标题：标注该章节的起始时间戳及核心主题。\n   - 二级要点：罗列该章节下的具体细节、操作步骤或关键论点，并精确标注对应的出现时间。\n\n# Constraints\n- 总结要求：语气客观专业，能够让用户不看视频也能掌握 80% 的核心信息。\n- 时间戳精度：必须严格基于字幕中提供的时间信息，确保准确性。\n- 标签要求：标签需具有检索价值，优先提取工具名、技术名词或场景分类。\n- 语言：统一使用中文。\n- 简洁性：保持简明扼要，严禁冗长废话。"
        }
      },
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 3,
      "position": [
        1728,
        -128
      ],
      "id": "5aff7633-6bbb-4935-b406-21fc664da379",
      "name": "AI Agent"
    },
    {
      "parameters": {
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.lmChatDeepSeek",
      "typeVersion": 1,
      "position": [
        1696,
        80
      ],
      "id": "afc66731-a9e2-4300-beb2-acf809264831",
      "name": "DeepSeek Chat Model",
      "credentials": {
        "deepSeekApi": {
          "id": "peOp7pcjSxphhmmF",
          "name": "DeepSeek account"
        }
      }
    },
    {
      "parameters": {
        "jsonSchemaExample": "{\n  \"tags\":[\"标签\",\"标签\",\"标签\"],\n  \"summary\": \"此处填写生成的视频总结全文，要求逻辑连贯，涵盖视频的起因、经过、结果和博主建议。\",\n  \"highlights\": [\n    {\n      \"timestamp\": \"00:00\",\n      \"title\": \"一级标题名称\",\n      \"sub_points\": [\n        {\n          \"timestamp\": \"00:18\",\n          \"content\": \"二级详细要点 1\"\n        },\n        {\n          \"timestamp\": \"01:54\",\n          \"content\": \"二级详细要点 2\"\n        }\n      ]\n    },\n    {\n      \"timestamp\": \"06:48\",\n      \"title\": \"一级标题名称\",\n      \"sub_points\": [\n        {\n          \"timestamp\": \"07:35\",\n          \"content\": \"二级详细要点 1\"\n        },\n        {\n          \"timestamp\": \"08:42\",\n          \"content\": \"二级详细要点 2\"\n        }\n      ]\n    }\n  ]\n}"
      },
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "typeVersion": 1.3,
      "position": [
        1904,
        80
      ],
      "id": "2bf84f2a-2d70-481b-805d-dd6fd16e1f64",
      "name": "Structured Output Parser"
    },
    {
      "parameters": {
        "resource": "databasePage",
        "databaseId": {
          "__rl": true,
          "value": "2ee629a6-152d-809d-963e-db8a25c99189",
          "mode": "list",
          "cachedResultName": "视频收藏",
          "cachedResultUrl": "https://www.notion.so/2ee629a6152d809d963edb8a25c99189"
        },
        "title": "={{ $('Loop Over Items').item.json.videoname }}",
        "propertiesUi": {
          "propertyValues": [
            {
              "key": "标题|title",
              "title": "={{ $('Loop Over Items').item.json.videoname }}"
            },
            {
              "key": "摘要|rich_text",
              "textContent": "={{ $json.output.summary }}"
            },
            {
              "key": "来源|select",
              "selectValue": "YouTube"
            },
            {
              "key": "网址|url",
              "urlValue": "={{ $('Loop Over Items').item.json.url }}"
            },
            {
              "key": "Tag标签|multi_select",
              "multiSelectValue": "={{ $json.output.tags }}"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.notion",
      "typeVersion": 2.2,
      "position": [
        2128,
        -352
      ],
      "id": "25713bcb-9d44-4274-87c4-3925291d4dfe",
      "name": "Create a database page",
      "credentials": {
        "notionApi": {
          "id": "tHqNwAxXQ88MGWlm",
          "name": "Notion account"
        }
      }
    },
    {
      "parameters": {
        "method": "PATCH",
        "url": "=https://api.notion.com/v1/blocks/{{ $json.id }}/children",
        "authentication": "predefinedCredentialType",
        "nodeCredentialType": "notionApi",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"children\": [\n    {\n      \"object\": \"block\",\n      \"type\": \"video\",\n      \"video\": {\n        \"type\": \"external\",\n        \"external\": {\n          \"url\": \"{{ $('Loop Over Items').item.json.url }}\"\n        }\n      }\n    }\n  ]\n} ",
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.3,
      "position": [
        2352,
        -352
      ],
      "id": "8cb98ecb-3fca-448a-8224-1426bda6a609",
      "name": "HTTP Request1",
      "credentials": {
        "notionApi": {
          "id": "tHqNwAxXQ88MGWlm",
          "name": "Notion account"
        }
      }
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "357c5018-717c-4518-aac9-bd74d992bdb4",
              "name": "time_line",
              "value": "={{ $('AI Agent').item.json.output.highlights }}",
              "type": "array"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        2880,
        -352
      ],
      "id": "a41ec582-d312-4123-b2b6-7d07e342df16",
      "name": "Edit Fields1"
    },
    {
      "parameters": {
        "fieldToSplitOut": "time_line",
        "include": "allOtherFields",
        "options": {}
      },
      "type": "n8n-nodes-base.splitOut",
      "typeVersion": 1,
      "position": [
        3120,
        -352
      ],
      "id": "98825180-ba72-41ca-a73f-e8aa62e2abe0",
      "name": "Split Out"
    },
    {
      "parameters": {
        "resource": "block",
        "blockId": {
          "__rl": true,
          "value": "={{ $('Create a database page').item.json.url }}",
          "mode": "url"
        },
        "blockUi": {
          "blockValues": [
            {
              "type": "heading_3",
              "textContent": "={{ $json.time_line.timestamp }} {{ $json.time_line.title }}"
            },
            {
              "textContent": "={{ $json.time_line.sub_points.map(item => `- ${item.timestamp} ${item.content}`).join('\\n') }}"
            }
          ]
        }
      },
      "type": "n8n-nodes-base.notion",
      "typeVersion": 2.2,
      "position": [
        3376,
        -352
      ],
      "id": "61969a11-2fc2-40e2-853a-81794877127a",
      "name": "Append a block",
      "credentials": {
        "notionApi": {
          "id": "tHqNwAxXQ88MGWlm",
          "name": "Notion account"
        }
      }
    },
    {
      "parameters": {
        "resource": "block",
        "blockId": {
          "__rl": true,
          "value": "={{ $('Create a database page').item.json.url }}",
          "mode": "url"
        },
        "blockUi": {
          "blockValues": [
            {
              "textContent": "={{ $('AI Agent').item.json.output.summary }}"
            },
            {
              "type": "heading_2",
              "textContent": "内容时间轴："
            }
          ]
        }
      },
      "type": "n8n-nodes-base.notion",
      "typeVersion": 2.2,
      "position": [
        2608,
        -352
      ],
      "id": "25ec4ed3-9f40-41f4-a291-9182fde7a21a",
      "name": "Append a block1",
      "credentials": {
        "notionApi": {
          "id": "tHqNwAxXQ88MGWlm",
          "name": "Notion account"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "// 获取输入数据\nconst videoName = $('Loop Over Items').first().json.videoname;\nconst url = $('Loop Over Items').first().json.url;\nconst data = $input.first().json.output;\nconst now = new Date();\n\n// 格式化时间为上海时区 YYYY-MM-DD HH:mm\nconst formatDateTime = (date) => {\n  // 转换为上海时区 (UTC+8)\n  const shanghaiTime = new Date(date.toLocaleString('en-US', { timeZone: 'Asia/Shanghai' }));\n  \n  const year = shanghaiTime.getFullYear();\n  const month = String(shanghaiTime.getMonth() + 1).padStart(2, '0');\n  const day = String(shanghaiTime.getDate()).padStart(2, '0');\n  const hours = String(shanghaiTime.getHours()).padStart(2, '0');\n  const minutes = String(shanghaiTime.getMinutes()).padStart(2, '0');\n  return `${year}-${month}-${day} ${hours}:${minutes}`;\n};\n\n// 提取视频ID（从YouTube URL中）\nconst getVideoId = (url) => {\n  const match = url.match(/(?:v=|\\/)([\\w-]{11})/);\n  return match ? match[1] : '';\n};\n\n// 生成文件名（使用视频标题，处理特殊字符和标签）\nconst generateFileName = (title) => {\n  // 移除 #tag 标签\n  let cleanTitle = title.replace(/#\\S+/g, '').trim();\n  \n  // 移除或替换文件名中不允许的特殊字符\n  const sanitizedTitle = cleanTitle\n    .replace(/[<>:\"/\\\\|?*]/g, '') // 移除Windows不允许的字符\n    .replace(/\\s+/g, '_')          // 空格替换为下划线\n    .substring(0, 100);            // 限制长度避免文件名过长\n  \n  return `${sanitizedTitle}.md`;\n};\n\n// 生成YAML前置数据（包含tags数组）\nconst yamlFrontMatter = `---\nurl: ${url}\ntags: ${data.tags.join(', ')}\n来源: YouTube\n添加时间: ${formatDateTime(now)}\n---`;\n\n// 生成视频嵌入（使用videoName作为标题）\nconst videoEmbed = `![${videoName}](${url})`;\n\n// 直接输出摘要内容，不带\"摘要\"标题\nconst summarySection = `${data.summary}`;\n\n// 生成高亮/要点部分\nlet highlightsSection = '## 要点\\n\\n';\n\ndata.highlights.forEach((highlight) => {\n  // 格式化一级标题的时间戳\n  const titleTimeParts = highlight.timestamp.split(':');\n  const titleHours = parseInt(titleTimeParts[0]);\n  const titleMinutes = parseInt(titleTimeParts[1]);\n  const titleSeconds = parseFloat(titleTimeParts[2]);\n  const titleTotalSeconds = titleHours * 3600 + titleMinutes * 60 + titleSeconds;\n  const titleDisplayMinutes = String(Math.floor(titleTotalSeconds / 60)).padStart(2, '0');\n  const titleDisplaySeconds = String(Math.floor(titleTotalSeconds % 60)).padStart(2, '0');\n  const titleDisplayTime = `${titleDisplayMinutes}:${titleDisplaySeconds}`;\n  \n  // 获取视频ID\n  const videoId = getVideoId(url);\n  \n  // 生成一级标题的时间链接\n  const titleTimeLink = `https://www.youtube.com/watch?v=${videoId}&t=${Math.floor(titleTotalSeconds)}#t=${highlight.timestamp}`;\n  \n  // 一级标题（时间链接在外面，标题加粗）\n  highlightsSection += `[${titleDisplayTime}](${titleTimeLink}) **${highlight.title}**\\n\\n`;\n  \n  // 二级内容（无序列表）\n  if (highlight.sub_points && highlight.sub_points.length > 0) {\n    highlight.sub_points.forEach((point) => {\n      // 将时间戳转换为秒数\n      const timeParts = point.timestamp.split(':');\n      const hours = parseInt(timeParts[0]);\n      const minutes = parseInt(timeParts[1]);\n      const seconds = parseFloat(timeParts[2]);\n      const totalSeconds = hours * 3600 + minutes * 60 + seconds;\n      \n      // 格式化时间为 MM:SS\n      const displayMinutes = String(Math.floor(totalSeconds / 60)).padStart(2, '0');\n      const displaySeconds = String(Math.floor(totalSeconds % 60)).padStart(2, '0');\n      const displayTime = `${displayMinutes}:${displaySeconds}`;\n      \n      // 生成带时间戳链接的列表项\n      const timeLink = `https://www.youtube.com/watch?v=${videoId}&t=${Math.floor(totalSeconds)}#t=${point.timestamp}`;\n      highlightsSection += `- [${displayTime}](${timeLink}) ${point.content}\\n`;\n    });\n    highlightsSection += '\\n';\n  }\n});\n\n// 组合完整的markdown内容\nconst markdownContent = `${yamlFrontMatter}\n\n${videoEmbed}\n\n${summarySection}\n\n${highlightsSection}`;\n\n// 返回符合n8n规范的对象数组，包含文件相关信息\nreturn [\n  {\n    json: {\n      fileContent: markdownContent,\n      fileName: generateFileName(videoName),\n      mimeType: 'text/markdown',\n      title: videoName\n    }\n  }\n];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        2112,
        0
      ],
      "id": "830dcd8f-f978-4c70-9b1b-fd82aafe6324",
      "name": "Code in JavaScript"
    },
    {
      "parameters": {
        "operation": "toText",
        "sourceProperty": "fileContent",
        "options": {
          "fileName": "={{ $json.fileName }}"
        }
      },
      "type": "n8n-nodes-base.convertToFile",
      "typeVersion": 1.1,
      "position": [
        2320,
        0
      ],
      "id": "9f16ec9c-fd12-4727-bbd3-749548d7c120",
      "name": "Convert to File"
    },
    {
      "parameters": {
        "operation": "write",
        "fileName": "=./n8ndata/downloads/demo/{{ $('Code in JavaScript').item.json.fileName }}",
        "options": {}
      },
      "type": "n8n-nodes-base.readWriteFile",
      "typeVersion": 1,
      "position": [
        2528,
        0
      ],
      "id": "1cf8f67d-1956-491a-9219-61dac493c134",
      "name": "Read/Write Files from Disk1"
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 3
          },
          "conditions": [
            {
              "id": "aebcfddb-1fa4-49a0-8855-9f49375ee54a",
              "leftValue": "={{ $json.hasRunningTasks }}",
              "rightValue": false,
              "operator": {
                "type": "boolean",
                "operation": "equals"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.3,
      "position": [
        1024,
        -128
      ],
      "id": "b28a4d34-d09d-4937-84b2-af66b58bddf4",
      "name": "If"
    },
    {
      "parameters": {
        "url": "http://host.docker.internal:8081/history",
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.3,
      "position": [
        592,
        -192
      ],
      "id": "f935eed6-0e0d-4536-8bd8-93fbef90e6e5",
      "name": "HTTP Request4"
    },
    {
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