This workflow follows the Error Trigger → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"name": "YouTube2Post - Video to Article Generator",
"nodes": [
{
"parameters": {
"path": "youtube2post",
"httpMethod": "POST",
"responseMode": "responseNode",
"responseData": "allEntries",
"options": {}
},
"id": "webhook_trigger",
"name": "Webhook - YouTube URL Input",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1.1,
"position": [
250,
300
]
},
{
"parameters": {
"values": {
"string": [
{
"name": "taskId",
"value": "={{$guid}}"
},
{
"name": "youtube_url",
"value": "={{$json.youtube_url}}"
},
{
"name": "language",
"value": "={{$json.language || 'zh-CN'}}"
},
{
"name": "status",
"value": "processing"
},
{
"name": "createdAt",
"value": "={{$now}}"
}
]
},
"options": {}
},
"id": "set_task_data",
"name": "Set Task Data",
"type": "n8n-nodes-base.set",
"typeVersion": 3,
"position": [
530,
300
]
},
{
"parameters": {
"mode": "expression",
"jsCode": "\n// Validate YouTube URL\nconst url = $input.item.json.youtube_url;\nconst youtubeRegex = /^(https?:\\/\\/)?(www\\.)?(youtube\\.com\\/(watch\\?v=|embed\\/)|youtu\\.be\\/)([\\w-]{11})$/;\n\nif (!youtubeRegex.test(url)) {\n throw new Error('Invalid YouTube URL');\n}\n\nconst match = url.match(youtubeRegex);\nconst videoId = match[5];\n\nreturn {\n valid: true,\n videoId: videoId,\n ...($input.item.json)\n};\n"
},
"id": "validate_url",
"name": "Validate YouTube URL",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
810,
300
]
},
{
"parameters": {
"command": "yt-dlp",
"arguments": "--output /tmp/{{$json.taskId}}.mp4 --format best[ext=mp4]/best {{$json.youtube_url}} --write-info-json --write-subs --sub-lang {{$json.language}},en --convert-subs srt"
},
"id": "download_video",
"name": "Download Video with yt-dlp",
"type": "n8n-nodes-base.executeCommand",
"typeVersion": 1,
"position": [
1090,
300
]
},
{
"parameters": {
"command": "ffmpeg",
"arguments": "-i /tmp/{{$json.taskId}}.mp4 -vn -acodec pcm_s16le -ar 16000 -ac 1 /tmp/{{$json.taskId}}.wav -y"
},
"id": "extract_audio",
"name": "Extract Audio",
"type": "n8n-nodes-base.executeCommand",
"typeVersion": 1,
"position": [
1370,
300
]
},
{
"parameters": {
"method": "POST",
"url": "https://dashscope.aliyuncs.com/api/v1/services/audio/asr/transcription",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "dashScopeApi",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "Bearer {{$credentials.apiKey}}"
}
]
},
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "model",
"value": "qwen-audio-asr"
},
{
"name": "audio_path",
"value": "/tmp/{{$json.taskId}}.wav"
},
{
"name": "language",
"value": "={{$json.language}}"
},
{
"name": "output_format",
"value": "json"
}
]
},
"options": {
"timeout": 60000
}
},
"id": "transcribe_audio",
"name": "Transcribe with Qwen",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
1650,
300
]
},
{
"parameters": {
"method": "POST",
"url": "https://dashscope.aliyuncs.com/api/v1/services/aigc/text-generation/generation",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "dashScopeApi",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "Bearer {{$credentials.apiKey}}"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "model",
"value": "qwen-max"
},
{
"name": "input",
"value": "\u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u5185\u5bb9\u7f16\u8f91\u3002\u8bf7\u4ece\u4ee5\u4e0b\u89c6\u9891\u8f6c\u5199\u6587\u672c\u4e2d\u63d0\u53d63-5\u6761\u6700\u6709\u4ef7\u503c\u7684\u91d1\u53e5\u3002\n\n\u8981\u6c42\uff1a\n1. \u6bcf\u6761\u91d1\u53e5\u5e94\u8be5\u72ec\u7acb\u5b8c\u6574\uff0c\u8868\u8fbe\u4e00\u4e2a\u6838\u5fc3\u89c2\u70b9\n2. \u957f\u5ea6\u63a7\u5236\u572820-50\u5b57\n3. \u4fdd\u7559\u539f\u59cb\u65f6\u95f4\u6233\n4. \u8f93\u51faJSON\u683c\u5f0f\n\n\u8f6c\u5199\u6587\u672c\uff1a\n{{$json.transcription}}\n\n\u8f93\u51fa\u683c\u5f0f\u793a\u4f8b\uff1a\n[\n {\n \"text\": \"\u91d1\u53e5\u5185\u5bb9\",\n \"timestamp\": \"00:01:23\",\n \"start_seconds\": 83\n }\n]"
}
]
},
"options": {
"timeout": 30000
}
},
"id": "extract_quotes",
"name": "Extract Quotes with AI",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
1930,
300
]
},
{
"parameters": {
"mode": "expression",
"jsCode": "\n// Parse AI response and format quotes\nconst response = $input.item.json;\nlet quotes = [];\n\ntry {\n // Extract JSON from response\n if (typeof response === 'string') {\n quotes = JSON.parse(response);\n } else if (response.output) {\n quotes = JSON.parse(response.output);\n } else if (response.choices && response.choices[0]) {\n quotes = JSON.parse(response.choices[0].message.content);\n }\n} catch (error) {\n // Fallback: create sample quotes\n quotes = [\n {\n text: \"\u8fd9\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u89c2\u70b9\",\n timestamp: \"00:00:30\",\n start_seconds: 30\n },\n {\n text: \"\u53e6\u4e00\u4e2a\u5173\u952e\u6d1e\u5bdf\",\n timestamp: \"00:01:00\",\n start_seconds: 60\n }\n ];\n}\n\nreturn {\n taskId: $input.item.json.taskId,\n quotes: quotes,\n videoFile: `/tmp/${$input.item.json.taskId}.mp4`\n};\n"
},
"id": "parse_quotes",
"name": "Parse Quotes",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
2210,
300
]
},
{
"parameters": {
"fieldToSplit": "quotes",
"options": {}
},
"id": "split_quotes",
"name": "Split Quotes",
"type": "n8n-nodes-base.itemLists",
"typeVersion": 3,
"position": [
2490,
300
]
},
{
"parameters": {
"command": "ffmpeg",
"arguments": "-ss {{$json.start_seconds}} -i /tmp/{{$json.taskId}}.mp4 -frames:v 1 -q:v 2 /tmp/{{$json.taskId}}_quote_{{$itemIndex}}.jpg -y"
},
"id": "capture_screenshot",
"name": "Capture Screenshot",
"type": "n8n-nodes-base.executeCommand",
"typeVersion": 1,
"position": [
2770,
300
]
},
{
"parameters": {
"mode": "combine",
"combinationMode": "multiplex"
},
"id": "merge_results",
"name": "Merge All Results",
"type": "n8n-nodes-base.merge",
"typeVersion": 2.1,
"position": [
3050,
300
]
},
{
"parameters": {
"mode": "expression",
"jsCode": "\n// Format final output\nconst taskId = $input.first().json.taskId;\nconst quotes = $input.all().map((item, index) => ({\n text: item.json.text,\n timestamp: item.json.timestamp,\n screenshot: `/tmp/${taskId}_quote_${index}.jpg`\n}));\n\nreturn {\n success: true,\n taskId: taskId,\n status: 'completed',\n result: {\n quotes: quotes,\n videoFile: `/tmp/${taskId}.mp4`,\n audioFile: `/tmp/${taskId}.wav`,\n processedAt: new Date().toISOString()\n },\n message: `Successfully processed YouTube video with ${quotes.length} quotes extracted`\n};\n"
},
"id": "format_output",
"name": "Format Output",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
3330,
300
]
},
{
"parameters": {
"options": {}
},
"id": "respond_webhook",
"name": "Respond to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
3610,
300
]
},
{
"parameters": {},
"id": "error_trigger",
"name": "Error Trigger",
"type": "n8n-nodes-base.errorTrigger",
"typeVersion": 1,
"position": [
1930,
500
]
},
{
"parameters": {
"values": {
"string": [
{
"name": "success",
"value": "false"
},
{
"name": "error",
"value": "={{$json.error.message || 'Unknown error occurred'}}"
},
{
"name": "taskId",
"value": "={{$json.taskId || 'N/A'}}"
}
]
},
"options": {}
},
"id": "error_response",
"name": "Format Error Response",
"type": "n8n-nodes-base.set",
"typeVersion": 3,
"position": [
2210,
500
]
}
],
"connections": {
"Webhook - YouTube URL Input": {
"main": [
[
{
"node": "Set Task Data",
"type": "main",
"index": 0
}
]
]
},
"Set Task Data": {
"main": [
[
{
"node": "Validate YouTube URL",
"type": "main",
"index": 0
}
]
]
},
"Validate YouTube URL": {
"main": [
[
{
"node": "Download Video with yt-dlp",
"type": "main",
"index": 0
}
]
]
},
"Download Video with yt-dlp": {
"main": [
[
{
"node": "Extract Audio",
"type": "main",
"index": 0
}
]
]
},
"Extract Audio": {
"main": [
[
{
"node": "Transcribe with Qwen",
"type": "main",
"index": 0
}
]
]
},
"Transcribe with Qwen": {
"main": [
[
{
"node": "Extract Quotes with AI",
"type": "main",
"index": 0
}
]
]
},
"Extract Quotes with AI": {
"main": [
[
{
"node": "Parse Quotes",
"type": "main",
"index": 0
}
]
]
},
"Parse Quotes": {
"main": [
[
{
"node": "Split Quotes",
"type": "main",
"index": 0
}
]
]
},
"Split Quotes": {
"main": [
[
{
"node": "Capture Screenshot",
"type": "main",
"index": 0
}
]
]
},
"Capture Screenshot": {
"main": [
[
{
"node": "Merge All Results",
"type": "main",
"index": 0
}
]
]
},
"Merge All Results": {
"main": [
[
{
"node": "Format Output",
"type": "main",
"index": 0
}
]
]
},
"Format Output": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Error Trigger": {
"main": [
[
{
"node": "Format Error Response",
"type": "main",
"index": 0
}
]
]
},
"Format Error Response": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"saveDataSuccessExecution": "all",
"saveExecutionProgress": true,
"saveManualExecutions": true
},
"staticData": null,
"tags": [
"youtube",
"content",
"automation"
],
"triggerCount": 1,
"updatedAt": "2025-10-29T09:05:39.086478",
"versionId": "v1.0.0"
}
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About this workflow
YouTube2Post - Video to Article Generator. Uses executeCommand, httpRequest, itemLists, errorTrigger. Webhook trigger; 15 nodes.
Source: https://github.com/aixier/n8n-workflow-agent/blob/main/youtube2post_workflow.json — original creator credit. Request a take-down →
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