{
  "id": "TApiWf16SlackSum01",
  "name": "Slack Auto-Summary of Shared YouTube Links (TranscriptAPI)",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "youtube-summary",
        "responseMode": "onReceived",
        "options": {}
      },
      "id": "16161616-1616-4616-8616-161616161601",
      "name": "Slack/Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        -260,
        0
      ]
    },
    {
      "parameters": {
        "jsCode": "// Pull the first YouTube URL out of the incoming payload (Slack event, webhook body, or ?url=).\nconst b = $json.body || $json;\nconst text = (b && b.event && b.event.text) || b.text || b.url || ($json.query && $json.query.url) || '';\nconst slackChannel = (b && b.event && b.event.channel) || b.channel || 'REPLACE_WITH_SLACK_CHANNEL_ID';\nfunction clean(t) { return String(t).split('<').join('').split('>').join('').split('|')[0]; }\nfunction isYt(t) { return t.indexOf('youtu.be/') >= 0 || (t.indexOf('youtube.com') >= 0 && (t.indexOf('watch') >= 0 || t.indexOf('/shorts/') >= 0)); }\nconst tokens = String(text).split('\\n').join(' ').split(' ');\nlet videoUrl = null;\nfor (const tok of tokens) { const c = clean(tok); if (isYt(c)) { videoUrl = c; break; } }\nif (!videoUrl) return []; // no YouTube link found — nothing to do\nreturn [ { json: { videoUrl, slackChannel } } ];"
      },
      "id": "16161616-1616-4616-8616-161616161602",
      "name": "Extract YouTube URL",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        -40,
        0
      ]
    },
    {
      "parameters": {
        "url": "https://transcriptapi.com/api/v2/youtube/transcript",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "video_url",
              "value": "={{ $json.videoUrl }}"
            },
            {
              "name": "format",
              "value": "json"
            },
            {
              "name": "send_metadata",
              "value": "true"
            }
          ]
        },
        "options": {}
      },
      "id": "16161616-1616-4616-8616-161616161603",
      "name": "Get Transcript (TranscriptAPI)",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        180,
        0
      ],
      "credentials": {
        "httpHeaderAuth": {
          "id": "REPLACE_TRANSCRIPTAPI_CRED_ID",
          "name": "TranscriptAPI - Authorization Bearer"
        }
      },
      "onError": "continueRegularOutput"
    },
    {
      "parameters": {
        "jsCode": "const data = $input.first().json;\nconst transcriptText = (data.transcript || []).map((s) => s.text).join(' ');\nconst meta = data.metadata || {};\nreturn [\n  {\n    json: {\n      title: meta.title || null,\n      videoUrl: 'https://www.youtube.com/watch?v=' + data.video_id,\n      transcriptText,\n      slackChannel: $('Extract YouTube URL').first().json.slackChannel,\n    },\n  },\n];"
      },
      "id": "16161616-1616-4616-8616-161616161604",
      "name": "Build Transcript Text",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        400,
        0
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://api.openai.com/v1/chat/completions",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ model: 'gpt-4o-mini', messages: [ { role: 'system', content: 'Summarize this YouTube video transcript in exactly 3 concise bullet points. Reply with only the 3 bullets, each starting with \"- \".' }, { role: 'user', content: 'Title: ' + ($json.title || '') + '\\n\\nTranscript:\\n' + $json.transcriptText } ] }) }}",
        "options": {}
      },
      "id": "16161616-1616-4616-8616-161616161605",
      "name": "Summarize (LLM)",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        620,
        0
      ],
      "credentials": {
        "httpHeaderAuth": {
          "id": "REPLACE_OPENAI_CRED_ID",
          "name": "OpenAI - Authorization Bearer"
        }
      }
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://slack.com/api/chat.postMessage",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ channel: $('Extract YouTube URL').first().json.slackChannel, text: '*' + ($('Build Transcript Text').first().json.title || 'YouTube summary') + '*\\n' + $('Build Transcript Text').first().json.videoUrl + '\\n\\n' + $json.choices[0].message.content }) }}",
        "options": {}
      },
      "id": "16161616-1616-4616-8616-161616161606",
      "name": "Post to Slack",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        840,
        0
      ],
      "credentials": {
        "httpHeaderAuth": {
          "id": "REPLACE_SLACK_CRED_ID",
          "name": "Slack - Authorization Bearer"
        }
      }
    }
  ],
  "connections": {
    "Slack/Webhook Trigger": {
      "main": [
        [
          {
            "node": "Extract YouTube URL",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract YouTube URL": {
      "main": [
        [
          {
            "node": "Get Transcript (TranscriptAPI)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get Transcript (TranscriptAPI)": {
      "main": [
        [
          {
            "node": "Build Transcript Text",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Build Transcript Text": {
      "main": [
        [
          {
            "node": "Summarize (LLM)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Summarize (LLM)": {
      "main": [
        [
          {
            "node": "Post to Slack",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "pinData": {}
}