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Create a searchable YouTube educator directory with smart keyword matching

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🎓 n8n Learning Hub — AI-Powered YouTube Educator Directory

📋 Overview

This workflow demonstrates how to use n8n Data Tables to create a searchable database of educational YouTube content. Users can search for videos by topic (e.g., "voice", "scraping", "lead gen") and receive formatted recommendations from top n8n educators.

What This Workflow Does:

  • Receives search queries via webhook (e.g., topic: "voice agents")
  • Processes keywords using JavaScript to normalize search terms
  • Queries a Data Table to find matching educational videos
  • Returns formatted results with video titles, educators, difficulty levels, and links
  • Populates the database with a one-time setup workflow

🎯 Key Features

✅ Data Tables Introduction - Learn how to store and query structured data
✅ Webhook Integration - Accept external requests and return JSON responses
✅ Keyword Processing - Simple text normalization and keyword matching
✅ Batch Operations - Use Split in Batches to populate tables efficiently
✅ Frontend Ready - Easy to connect with Lovable, Replit, or custom UIs

🛠️ Setup Guide

Step 1: Import the Workflow

  1. Copy the workflow JSON
  2. In n8n, go to Workflows → Import from File or Import from URL
  3. Paste the JSON and click Import

Step 2: Create the Data Table

The workflow uses a Data Table called n8n_Educator_Videos with these columns:

  • Educator (text) - Creator name
  • video_title (text) - Video title
  • Difficulty (text) - Beginner/Intermediate/Advanced
  • YouTubeLink (text) - Full YouTube URL
  • Description (text) - Video summary for search matching

To create it:

  1. Go to Data Tables in your n8n instance
  2. Click + Create Data Table
  3. Name it n8n_Educator_Videos
  4. Add the 5 columns listed above

Step 3: Populate the Database

  1. Click on the "When clicking 'Execute workflow'" node (bottom branch)
  2. Click Execute Node to run the setup
  3. This will insert all 9 educational videos into your Data Table

Step 4: Activate the Webhook

  1. Click on the Webhook node (top branch)
  2. Copy the Production URL (looks like: https://your-n8n.app.n8n.cloud/webhook/1799531d-...)
  3. Click Activate on the workflow
  4. Test it with a POST request:
curl -X POST https://your-n8n.app.n8n.cloud/webhook/YOUR-WEBHOOK-ID \
  -H "Content-Type: application/json" \
  -d '{"topic": "voice"}'

🔍 How the Search Works

Keyword Processing Logic

The JavaScript node normalizes search queries:

  • "voice", "audio", "talk" → Matches voice agent tutorials
  • "lead", "lead gen" → Matches lead generation content
  • "scrape", "data", "scraping" → Matches web scraping tutorials

The Data Table query uses LIKE matching on the Description field, so partial matches work great.

Example Queries:

{"topic": "voice"}        // Returns Eleven Labs Voice Agent
{"topic": "scraping"}     // Returns 2 scraping tutorials
{"topic": "avatar"}       // Returns social media AI avatar videos
{"topic": "advanced"}     // Returns all advanced-level content

🎨 Building a Frontend with Lovable or Replit

Option 1: Lovable (lovable.dev)

Lovable is an AI-powered frontend builder perfect for quick prototypes.

Prompt for Lovable:

Create a modern search interface for an n8n YouTube learning hub:

- Title: "🎓 n8n Learning Hub"
- Search bar with placeholder "Search for topics: voice, scraping, RAG..."
- Submit button that POSTs to webhook: [YOUR_WEBHOOK_URL]
- Display results as cards showing:
  * 🎥 Video Title (bold)
  * 👤 Educator name
  * 🧩 Difficulty badge (color-coded)
  * 🔗 YouTube link button
  * 📝 Description

Design: Dark mode, modern glassmorphism style, responsive grid layout

Implementation Steps:

  1. Go to lovable.dev and start a new project
  2. Paste the prompt above
  3. Replace [YOUR_WEBHOOK_URL] with your actual webhook
  4. Export the code or deploy directly

Option 2: Replit (replit.com)

Use Replit's HTML/CSS/JS template for more control.

HTML Structure:

<!DOCTYPE html>
<html>
<head>
  <title>n8n Learning Hub</title>
  <style>
    body { font-family: Arial; max-width: 900px; margin: 50px auto; }
    #search { padding: 10px; width: 70%; font-size: 16px; }
    button { padding: 10px 20px; font-size: 16px; }
    .video-card { border: 1px solid #ddd; padding: 20px; margin: 20px 0; }
  </style>
</head>
<body>
  <h1>🎓 n8n Learning Hub</h1>
  &lt;input id="search" placeholder="Search: voice, scraping, RAG..." /&gt;
  &lt;button onclick="searchVideos()"&gt;Search&lt;/button&gt;
  <div></div>

  &lt;script&gt;
    async function searchVideos() {
      const topic = document.getElementById('search').value;
      const response = await fetch('YOUR_WEBHOOK_URL', {
        method: 'POST',
        headers: {'Content-Type': 'application/json'},
        body: JSON.stringify({topic})
      });
      const data = await response.json();
      document.getElementById('results').innerHTML = data.Message || 'No results';
    }
  &lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;

Option 3: Base44 (No-Code Tool)

If using Base44 or similar no-code tools:

  1. Create a Form with a text input (name: topic)
  2. Add a Submit Action → HTTP Request
  3. Set Method: POST, URL: Your webhook
  4. Map form data: {"topic": "{{topic}}"}
  5. Display response in a Text Block using {{response.Message}}

📊 Understanding Data Tables

Why Data Tables?

  • Persistent Storage - Data survives workflow restarts
  • Queryable - Use conditions (equals, like, greater than) to filter
  • Scalable - Handle thousands of records efficiently
  • No External DB - Everything stays within n8n

Common Operations:

  1. Insert Row - Add new records (used in the setup branch)
  2. Get Row(s) - Query with filters (used in the search branch)
  3. Update Row - Modify existing records by ID
  4. Delete Row - Remove records

Best Practices:

  • Use descriptive column names
  • Include a searchable text field (like Description)
  • Keep data normalized (avoid duplicate entries)
  • Use the "Split in Batches" node for bulk operations

🚀 Extending This Workflow

Ideas to Try:

  1. Add More Educators - Expand the video database
  2. Category Filtering - Add a Category column (Automation, AI, Scraping)
  3. Difficulty Sorting - Let users filter by skill level
  4. Vote System - Add upvote/downvote columns
  5. Analytics - Track which topics are searched most
  6. Admin Panel - Build a form to add new videos via webhook

Advanced Features:

  • AI-Powered Search - Use OpenAI embeddings for semantic search
  • Thumbnail Scraping - Fetch YouTube thumbnails via API
  • Auto-Updates - Periodically check for new videos from educators
  • Personalization - Track user preferences in a separate table

🐛 Troubleshooting

Problem: Webhook returns empty results
Solution: Check that the Description field contains searchable keywords

Problem: Database is empty
Solution: Run the "When clicking 'Execute workflow'" branch to populate data

Problem: Frontend not connecting
Solution: Verify webhook is activated and URL is correct (use Test mode first)

Problem: Search too broad/narrow
Solution: Adjust the keyword logic in "Load Video DB" node

📚 Learning Resources

Want to learn more about the concepts in this workflow?

🎓 What You Learned

By completing this workflow, you now understand: ✅ How to create and populate Data Tables
✅ How to query tables with conditional filters
✅ How to build webhook-based APIs in n8n
✅ How to process and normalize user input
✅ How to format data for frontend consumption
✅ How to connect n8n with external UIs

Happy Learning! 🚀
Built with ❤️ using n8n Data Tables