Content Moderator | APIVerve API Tutorial

A Node.js web app for filtering profanity from user-generated content. Perfect for moderating comments, chat messages, and user submissions.

---

Get Your Free API Key

This tutorial requires an APIVerve API key. Sign up free - no credit card required.

---

Features

• Filter profanity from any text input
• Customizable mask character (*, #, etc.)
• Shows filtered result and flagged words
• Clean/Flagged status indicator
• Count of profane words found
• Modern, responsive UI
• Built with Express.js

Quick Start

1. Clone this repository

   git clone https://github.com/apiverve/content-moderator-node-tutorial.git
   cd content-moderator-node-tutorial

2. Install dependencies

   npm install

3. Add your API key

   Set environment variable or edit server.js:

   export API_KEY=your-api-key-here

4. Start the server

   npm start

5. Open in browser

   Visit http://localhost:3000 and test the moderator!

Project Structure

content-moderator-node-tutorial/
├── server.js           # Express server & API endpoint
├── public/
│   └── index.html      # Frontend UI
├── package.json        # Dependencies
├── screenshot.jpg      # Preview image
├── LICENSE             # MIT license
├── .gitignore          # Git ignore rules
└── README.md           # This file

How It Works

1. User enters text in the web interface
2. Frontend sends POST request to /api/moderate
3. Server calls the Profanity Filter API
4. API returns filtered text and flagged words
5. Frontend displays results with status

The API Call

const response = await fetch('https://api.apiverve.com/v1/profanityfilter', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-api-key': API_KEY
  },
  body: JSON.stringify({
    text: 'Text to moderate',
    mask: '*'
  })
});

API Reference

Endpoint: POST https://api.apiverve.com/v1/profanityfilter

Request Body:

Parameter	Type	Required	Description
text	string	Yes	Text to filter
mask	string	No	Character to replace profanity (default: *)

Example Response:

{
  "status": "ok",
  "error": null,
  "data": {
    "isProfane": true,
    "filteredText": "Today is so **** hot! Why the **** would anyone go outside?",
    "mask": "*",
    "trimmed": false,
    "profaneWords": 2
  }
}

Use Cases

• Comment moderation - Filter user comments before posting
• Chat applications - Real-time message filtering
• User profiles - Validate usernames and bios
• Reviews - Clean up product/service reviews
• Forums - Moderate discussion posts
• Gaming - Filter in-game chat

Customization Ideas

• Add batch processing for multiple texts
• Save moderation history to database
• Add different severity levels
• Implement allow/block lists
• Add real-time filtering as you type
• Build a moderation dashboard with statistics

Related APIs

Explore more APIs at APIVerve:

• Spam Detector - Detect spam content
• Sentiment Analysis - Analyze text sentiment
• Content Filter - Advanced content filtering

Free Plan Note

This tutorial works with the free APIVerve plan. Some APIs may have:

• Locked fields: Premium response fields return null on free plans
• Ignored parameters: Some optional parameters require a paid plan

The API response includes a premium object when limitations apply. Upgrade anytime to unlock all features.

License

MIT - see LICENSE

Links

• Get API Key - Sign up free
• APIVerve Marketplace - Browse 300+ APIs
• Profanity Filter API - API details