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Automatically Create YouTube Metadata with AI
https://n8nworkflows.xyz/workflows/automatically-create-youtube-metadata-with-ai-2976
# Automatically Create YouTube Metadata with AI
### 1. Workflow Overview
This workflow automates the generation and updating of YouTube video metadata using AI, specifically targeting content creators, marketers, and affiliate promoters. It accepts user input including a YouTube video link, transcript, and optional focus keywords, then processes this data to produce optimized video titles, descriptions, tags, hashtags, and call-to-action elements. The workflow integrates affiliate and promotional links retrieved from a Google Docs source and directly updates the video metadata on YouTube via the YouTube API.
The workflow is logically divided into the following blocks:
- **1.1 User Input Reception:** Captures video link, transcript, and optional keywords via a web form.
- **1.2 Video ID Extraction:** Parses the YouTube URL to extract the video ID.
- **1.3 Affiliate & Promotional Link Retrieval:** Fetches relevant links from a Google Docs document.
- **1.4 AI-Powered Metadata Generation:** Uses OpenAI GPT-4 via a LangChain agent to generate structured metadata.
- **1.5 Metadata Parsing and Formatting:** Parses AI output and formats tags for YouTube.
- **1.6 YouTube Metadata Update:** Updates the video metadata on YouTube using the YouTube API.
- **1.7 Confirmation Display:** Shows a success message with updated video details.
- **1.8 Documentation and Credits:** Provides workflow credits and support information via sticky notes.
---
### 2. Block-by-Block Analysis
#### 2.1 User Input Reception
- **Overview:**
Captures user inputs through a web form, including the YouTube video link, transcript, and optional focus keywords.
- **Nodes Involved:**
- On form submission (Form Trigger)
- **Node Details:**
- **On form submission**
- Type: Form Trigger
- Role: Entry point capturing user inputs via a web form titled "Syncbricks Youtube" with fields for YouTube Video Link (required), Video Transcript (required), and Focus Keywords (optional).
- Key expressions: Captures raw input JSON for downstream processing.
- Input: HTTP webhook trigger on form submission.
- Output: JSON containing user inputs.
- Edge cases: Missing required fields; invalid URL format not explicitly validated here.
- Version: 2.2
#### 2.2 Video ID Extraction
- **Overview:**
Extracts the YouTube video ID from the provided URL to facilitate API calls.
- **Nodes Involved:**
- Extract Video ID (Set node)
- **Node Details:**
- **Extract Video ID**
- Type: Set
- Role: Parses the YouTube URL string to isolate the video ID by removing the "https://youtu.be/" prefix.
- Configuration: Uses an expression to replace the URL prefix with an empty string, storing the result in `videoID`.
- Input: Output from "Youtube Meta Generator" node (which is triggered after form submission).
- Output: JSON with `videoID` string.
- Edge cases: URLs in formats other than "https://youtu.be/..." may not parse correctly; no validation for malformed URLs.
- Version: 3.4
#### 2.3 Affiliate & Promotional Link Retrieval
- **Overview:**
Retrieves affiliate, course, social media, and other promotional links from a Google Docs document to enrich video metadata.
- **Nodes Involved:**
- syncbricks information (Google Docs Tool)
- **Node Details:**
- **syncbricks information**
- Type: Google Docs Tool
- Role: Fetches content from a specific Google Docs document identified by its document ID.
- Configuration: Operation set to "get" with a manual description indicating it contains affiliate and promotional links.
- Input: None (runs independently, data used by AI agent).
- Output: Text content of the document for use as a tool by the AI agent.
- Edge cases: Google Docs API authentication errors, document access permissions, or empty document content.
- Version: 2
#### 2.4 AI-Powered Metadata Generation
- **Overview:**
Uses a LangChain AI agent powered by OpenAI GPT-4 to generate structured YouTube metadata based on the transcript, keywords, and affiliate/promotional links.
- **Nodes Involved:**
- OpenAI Chat Model (Language Model)
- Youtube Meta Generator (LangChain Agent)
- Output Parser (Structured Output Parser)
- **Node Details:**
- **OpenAI Chat Model**
- Type: LangChain OpenAI Chat Model
- Role: Provides GPT-4o-mini model for natural language generation.
- Configuration: Model set to "gpt-4o-mini" with default options.
- Input: Prompt from "Youtube Meta Generator".
- Output: Raw AI-generated text.
- Edge cases: API rate limits, authentication errors, model unavailability.
- Version: 1.2
- **Youtube Meta Generator**
- Type: LangChain Agent
- Role: Orchestrates AI prompt execution, uses "syncbricks information" as a tool to incorporate affiliate/promotional links, and generates a JSON-formatted metadata output.
- Configuration:
- Prompt instructs the AI to generate a structured JSON with title, description, keywords, hashtags, affiliate links, call to action, and additional promotional links.
- Emphasizes SEO optimization, natural language, and inclusion of relevant links.
- Uses input variables: Video Transcript, Focus Keywords, and syncbricks information content.
- Limits iterations to 10 for prompt refinement.
- Input: Form submission data and syncbricks information tool output.
- Output: AI-generated structured JSON metadata.
- Edge cases: AI hallucination, incomplete or malformed JSON output, missing or irrelevant affiliate links.
- Version: 1.7
- **Output Parser**
- Type: LangChain Structured Output Parser
- Role: Validates and parses the AI-generated JSON output against a defined JSON schema to extract metadata fields.
- Configuration: Manual schema defining expected fields: title, description, tags (array), hashtags (array), call_to_action (string).
- Input: Raw AI output from "Youtube Meta Generator".
- Output: Parsed JSON object with structured metadata.
- Edge cases: Parsing failures if AI output deviates from schema, missing fields.
- Version: 1.2
#### 2.5 Metadata Formatting and Update
- **Overview:**
Formats tags into a comma-separated string and updates the YouTube video metadata using the YouTube API.
- **Nodes Involved:**
- Format Tags (Set)
- YouTube (YouTube API node)
- **Node Details:**
- **Format Tags**
- Type: Set
- Role: Converts the array of tags from AI output into a single comma-separated string for YouTube API compatibility.
- Configuration: Uses expression to join tags array with commas.
- Input: Parsed metadata from "Youtube Meta Generator".
- Output: JSON with `formatted_tags` string.
- Edge cases: Empty or null tags array results in empty string.
- Version: 3.4
- **YouTube**
- Type: YouTube API
- Role: Updates video metadata fields including title, description, and tags on YouTube.
- Configuration:
- Operation: Update video resource.
- Uses video ID from "Extract Video ID".
- Title, description, and tags populated from AI-generated metadata.
- Description appended with fixed social media and contact links plus AI-generated call to action and hashtags.
- Category ID set to 28 (Science & Technology).
- Region code set to "OM" (Oman).
- Input: Formatted tags and AI metadata.
- Output: API response confirming update.
- Edge cases: API authentication failure, invalid video ID, quota limits, network errors.
- Version: 1
#### 2.6 Confirmation Display
- **Overview:**
Displays a confirmation message to the user indicating successful video metadata update.
- **Nodes Involved:**
- Form (Completion)
- **Node Details:**
- **Form**
- Type: Form (Completion)
- Role: Sends a completion message back to the user with the updated video title and video link.
- Configuration:
- Completion title and message dynamically populated with video title and original YouTube link.
- Input: Output from "YouTube" node.
- Output: HTTP response to user.
- Edge cases: Failure to receive update confirmation from YouTube node.
- Version: 1
#### 2.7 Documentation and Credits
- **Overview:**
Provides workflow credits, support information, and external resource links for users.
- **Nodes Involved:**
- Sticky Note11
- Sticky Note
- **Node Details:**
- **Sticky Note11**
- Type: Sticky Note
- Role: Contains detailed credits by Amjid Ali, PayPal donation link, course links, contact info, and social media profiles.
- Position: Visual documentation only, no data flow.
- Content includes:
- PayPal donation URL
- SyncBricks LMS and Udemy course links
- Contact email and LinkedIn
- YouTube channel link
- Version: 1
- **Sticky Note**
- Type: Sticky Note
- Role: Notes about customizing the YouTube Meta Generator for personal channels.
- Version: 1
---
### 3. Summary Table
| Node Name | Node Type | Functional Role | Input Node(s) | Output Node(s) | Sticky Note |
|---------------------|--------------------------------------|----------------------------------------|---------------------------|--------------------------|------------------------------------------------------------------------------------------------|
| On form submission | Form Trigger | Captures user input (video link, transcript, keywords) | - | Youtube Meta Generator | |
| Youtube Meta Generator | LangChain Agent | Generates structured YouTube metadata using AI and affiliate links | On form submission, syncbricks information, OpenAI Chat Model, Output Parser | Extract Video ID | Sticky Note: Customize it for your own YouTube channel |
| syncbricks information | Google Docs Tool | Retrieves affiliate and promotional links from Google Docs | - | Youtube Meta Generator | |
| OpenAI Chat Model | LangChain OpenAI Chat Model | Provides GPT-4o-mini model for AI text generation | Youtube Meta Generator | Youtube Meta Generator | |
| Output Parser | LangChain Structured Output Parser | Parses AI JSON output into structured metadata | Youtube Meta Generator | Youtube Meta Generator | |
| Extract Video ID | Set | Extracts video ID from YouTube URL | Youtube Meta Generator | Format Tags | |
| Format Tags | Set | Formats tags array into comma-separated string | Extract Video ID | YouTube | |
| YouTube | YouTube API | Updates video metadata on YouTube | Format Tags | Form | |
| Form | Form Completion | Displays success confirmation message | YouTube | - | |
| Sticky Note11 | Sticky Note | Workflow credits, support, and resource links | - | - | Developed by Amjid Ali. Support via PayPal: http://paypal.me/pmptraining. See SyncBricks LMS and courses. |
---
### 4. Reproducing the Workflow from Scratch
1. **Create a Form Trigger Node ("On form submission")**
- Type: Form Trigger
- Configure webhook with ID `syncbricks-youtube-meta-automation`
- Form Title: "Syncbricks Youtube"
- Fields:
- "Youtube Video Link" (required)
- "Video Transcript" (required)
- "Focus Keywords" (optional, placeholder text)
- Button Label: "Update Youtube Video"
- Form Description: "Generate Youtube Video Title, Description, Tags and Hashtags"
2. **Create a Google Docs Tool Node ("syncbricks information")**
- Type: Google Docs Tool
- Operation: Get
- Document URL: Use document ID `15lN3FJ3iXABf_bd061-F7j-gGx2WBH8Jr6fjBLa3tis`
- Description: "affiliate links, course links, social media links and other relevant links related to syncbricks"
- Configure Google Docs credentials with appropriate OAuth2 access.
3. **Create an OpenAI Chat Model Node ("OpenAI Chat Model")**
- Type: LangChain OpenAI Chat Model
- Model: `gpt-4o-mini`
- Configure OpenAI credentials with API key.
4. **Create a LangChain Agent Node ("Youtube Meta Generator")**
- Type: LangChain Agent
- Text prompt: Use the detailed prompt instructing AI to generate structured JSON metadata including title, description, keywords, hashtags, affiliate links, call to action, and additional promotional links.
- Tools: Add "syncbricks information" as a tool for affiliate/promotional link retrieval.
- Max iterations: 10
- Input variables: Map from form submission fields for transcript and focus keywords.
- Connect "On form submission" main output to this node's main input.
- Connect "syncbricks information" output to this node's AI tool input.
- Connect "OpenAI Chat Model" output to this node's AI language model input.
5. **Create an Output Parser Node ("Output Parser")**
- Type: LangChain Structured Output Parser
- Schema: Define JSON schema expecting fields: video_title (string), video_description (string), youtube_metadata (object with title, description, tags array, hashtags array, call_to_action string), additional_notes (string).
- Connect "Youtube Meta Generator" AI output parser output to this node's input.
6. **Create a Set Node ("Extract Video ID")**
- Type: Set
- Assignment: Create string variable `videoID` by extracting from the YouTube link:
Expression: `={{ $('On form submission').item.json['Youtube Video Link'].replace("https://youtu.be/","") }}`
- Connect "Youtube Meta Generator" main output to this node.
7. **Create a Set Node ("Format Tags")**
- Type: Set
- Assignment: Create string variable `formatted_tags` by joining tags array with commas:
Expression: `={{ $('Youtube Meta Generator').item.json.output.youtube_metadata.tags.join() }}`
- Connect "Extract Video ID" main output to this node.
8. **Create a YouTube Node ("YouTube")**
- Type: YouTube API
- Operation: Update video resource
- Video ID: Use `={{ $('Extract Video ID').item.json.videoID }}`
- Title: Use `={{ $('Youtube Meta Generator').item.json.output.youtube_metadata.title }}`
- Description: Use AI-generated description appended with fixed social media links and call to action:
```
{{ $('Youtube Meta Generator').item.json.output.youtube_metadata.description }}
Connect with us :
Facebook: https://www.facebook.com/syncbricks
LinkedIn : https://linkedin.com/company/syncbricks
Instagram : https://instagram.com/syncbricks_com
Subscribe to youtube Channel : https://www.youtube.com/channel/UC1ORA3oNGYuQ8yQHrC7MzBg?sub_confirmation=1
Website :
Sync Bricks: https://syncbricks.com/
Contact : info@syncbricks.com
{{ $('Youtube Meta Generator').item.json.output.youtube_metadata.call_to_action }}
{{ $('Youtube Meta Generator').item.json.output.youtube_metadata.hashtags }}
```
- Tags: Use `={{ $json.formatted_tags }}`
- Category ID: 28 (Science & Technology)
- Region Code: OM (Oman)
- Configure YouTube API credentials with OAuth2.
9. **Create a Form Completion Node ("Form")**
- Type: Form Completion
- Completion Title: `=Video is updated with Title : {{ $json.snippet.title }}`
- Completion Message: `=Video is updated with Title : {{ $json.snippet.title }} and below is the video link\n{{ $('On form submission').item.json['Youtube Video Link'] }}`
- Connect "YouTube" main output to this node.
10. **Add Sticky Notes for Documentation**
- Add a sticky note with workflow credits and support information (content from Sticky Note11).
- Add a sticky note about customizing the YouTube Meta Generator (content from Sticky Note).
11. **Connect Nodes in the Following Order:**
- On form submission → Youtube Meta Generator
- syncbricks information → Youtube Meta Generator (AI tool input)
- OpenAI Chat Model → Youtube Meta Generator (AI language model input)
- Youtube Meta Generator → Output Parser (AI output parser input)
- Output Parser → Youtube Meta Generator (ai_outputParser output)
- Youtube Meta Generator → Extract Video ID
- Extract Video ID → Format Tags
- Format Tags → YouTube
- YouTube → Form (completion)
---
### 5. General Notes & Resources
| Note Content | Context or Link |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------|
| Developed by Amjid Ali. Support via PayPal: http://paypal.me/pmptraining. For full courses on ERPNext and AI automation, visit http://lms.syncbricks.com. | Sticky Note11 content |
| Customize the YouTube Meta Generator prompt for your own channel needs. | Sticky Note content |
| Watch the tutorial video on this workflow: https://youtu.be/VNpr9T00Is0 | Workflow description section |
| More courses and resources available at SyncBricks LMS: https://lms.syncbricks.com/ and Udemy course: https://www.udemy.com/course/ai-automation-mastery-build-intelligent-agents-with-lowcode/?referralCode=0062E7C1D64784AB70CA | Workflow description section |
| Contact info@syncbricks.com for support. Follow on LinkedIn: http://linkedin.com/in/amjidali, YouTube: https://www.youtube.com/channel/UC1ORA3oNGYuQ8yQHrC7MzBg?sub_confirmation=1, and website https://syncbricks.com | Workflow description section |
| Subscribe for more AI & automation workflows: https://n8n.syncbricks.com | Workflow description section |
---
This comprehensive documentation enables advanced users and AI agents to fully understand, reproduce, and customize the workflow for automated YouTube metadata generation with integrated affiliate marketing and AI optimization.
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