n8n-nodes-wechat-official

🚀 Professional WeChat Official Account integration for n8n workflows

This is an n8n community node that provides comprehensive WeChat Official Account API integration, enabling you to automate WeChat content management, user interactions, and media operations within your n8n workflows.

WeChat Official Account is China's leading social media platform for businesses, allowing organizations to create official accounts for customer engagement, content publishing, and service delivery.

n8n is a fair-code licensed workflow automation platform.

📋 Table of Contents

• ✨ Key Features
• 🚀 Quick Start
• 📦 Installation
• 🔐 Authentication
• ⚙️ Operations
• 🤖 AI Tool Integration
• 🐳 Docker Deployment
• 📚 Usage Examples
• 🔧 Development
• 🤝 Contributing
• 📄 License
• 🆘 Support

✨ Key Features

🎯 Core Capabilities

• 🔑 Smart Token Management - Automatic access token caching and refresh
• 📁 Complete Material Management - Upload images, voice, video, and thumbnails
• 📝 Draft Management - Create, edit, and publish article drafts
• 🛡️ Robust Error Handling - Comprehensive error codes mapping and retry mechanisms
• 🚀 High Performance - Batch processing and intelligent rate limiting
• 🔒 Enterprise Security - IP whitelist support and credential encryption

🤖 Advanced Integration

• 🔧 Dual Usage Mode - Works as both workflow node and AI tool (usableAsTool: true)
• 🔄 Batch Operations - Efficient bulk media uploads and content management
• 📊 Real-time Monitoring - Built-in logging and performance metrics
• 🌐 Multi-environment Support - Production and sandbox environments

🛠️ Developer Experience

• 📖 Comprehensive Documentation - Detailed guides and examples
• 🧪 Full Test Coverage - Jest-based testing suite
• 🎨 TypeScript Support - Full type safety and IntelliSense
• 🔍 ESLint Integration - Code quality and consistency

🚀 Quick Start

Prerequisites

• n8n instance (version 1.0.0 or higher)
• WeChat Official Account with API access
• Node.js 20.15 or higher

1-Minute Setup

1. Install the node:

   npm install n8n-nodes-wechat-official
   

2. Configure credentials in n8n:

   • App ID: Your WeChat Official Account App ID
   • App Secret: Your WeChat Official Account App Secret
   • Environment: Choose 'production' or 'sandbox'

3. Start automating - Add the WeChat Official Account node to your workflow!

📦 Installation

Method 1: npm Installation (Recommended)

# Install globally for n8n
npm install -g n8n-nodes-wechat-official

# Or install in your n8n project
npm install @xwang152/n8n-nodes-wechat-official

Method 2: Community Node Installation

1. Go to Settings > Community Nodes in your n8n instance
2. Click Install a community node
3. Enter: @xwang152/n8n-nodes-wechat-official
4. Click Install

For detailed instructions, follow the n8n community nodes installation guide.

Method 3: Manual Installation

# Clone the repository
git clone https://github.com/xwang152-jack/n8n-nodes-wechat-official.git
cd n8n-nodes-wechat-official

# Install dependencies and build
npm install
npm run build

# Link to your n8n installation
npm link

🔐 Authentication

Setting Up Credentials

This node requires WeChat Official Account API credentials:

Field	Description	Required	Example
App ID	WeChat Official Account App ID	✅	wx1234567890abcdef
App Secret	WeChat Official Account App Secret	✅	abcdef1234567890...
Environment	API environment	✅	production or sandbox
Server IP	Your server IP for whitelist	⚠️	192.168.1.100

Getting Your Credentials

1. Access WeChat Platform

   • Visit WeChat Official Account Platform
   • Login with your account credentials

2. Navigate to Developer Settings

   • Go to Development > Basic Configuration
   • Copy your App ID and App Secret

3. Configure IP Whitelist (Production Only)

   • Add your server IP to the whitelist
   • This is mandatory for production API access

Security Best Practices

• ✅ Store credentials securely in n8n credential store
• ✅ Use environment variables for sensitive data
• ✅ Regularly rotate App Secret (recommended: every 90 days)
• ✅ Monitor API usage and access logs
• ✅ Enable IP whitelist for production environments

⚙️ Operations

🔑 Access Token Management

• Get Access Token - Retrieve and cache access tokens
  • ⚡ Automatic caching (2-hour validity)
  • 🔄 Smart refresh mechanism
  • 🛡️ Error handling for expired tokens

📁 Material Management

• Upload Image - Upload images for articles and media

  • 📸 Support for base64 encoded images
  • ✅ Automatic format validation (JPG, PNG)
  • 📏 Size limit validation (up to 10MB)
  • 🆔 Returns media_id for further use

• Upload Media - Upload permanent media files

  • 🎵 Voice: MP3, WMA, WAV, AMR (up to 60s, 2MB)
  • 🎬 Video: MP4 (up to 10MB)
  • 🖼️ Thumbnail: JPG, PNG (up to 64KB)
  • 📦 Batch upload capabilities
  • 🔍 File validation and error reporting

📝 Draft Management

• Add Draft - Create new article drafts

  • 📝 Rich text content support
  • 🖼️ Media attachment handling
  • 👀 Draft validation and preview
  • 📊 Content statistics

• Publish Draft - Publish draft articles

  • 🚀 Automatic publishing workflow
  • 📈 Status tracking and confirmation
  • 🔄 Error recovery mechanisms
  • 📅 Scheduled publishing support

🤖 AI Tool Integration

This node supports AI Tool Calling Mode (usableAsTool: true), enabling seamless integration with AI assistants and automated systems.

Integration Methods

1. Workflow Node

[Trigger] → [WeChat Official Account] → [Other Nodes]

2. AI Tool Calling

// AI assistants can directly invoke node functions
const result = await wechatNode.execute({
  resource: 'material',
  operation: 'uploadImage',
  image: 'base64_encoded_image'
});

3. API Integration

# Direct API integration
curl -X POST /api/wechat/upload-image \
  -H "Content-Type: application/json" \
  -d '{"image": "base64_encoded_image"}'

Benefits of AI Integration

• 🤖 AI Assistant Integration - Let AI manage WeChat operations automatically
• 🔧 Programmatic Access - Use in custom scripts and applications
• 📦 Batch Processing - Efficient bulk operations
• ⚡ Real-time Integration - Immediate response for time-sensitive tasks
• 🔄 Event-driven Automation - Trigger actions based on external events

🐳 Docker Deployment

Quick Start with Docker Compose

version: '3.8'
services:
  n8n:
    image: n8nio/n8n:latest
    container_name: n8n-wechat
    ports:
      - "5679:5678"
    environment:
      - N8N_BASIC_AUTH_ACTIVE=true
      - N8N_BASIC_AUTH_USER=admin
      - N8N_BASIC_AUTH_PASSWORD=password
    volumes:
      - n8n_data:/home/node/.n8n
      - ./dist:/home/node/.n8n/custom  # Plugin files
    command: >
      sh -c "mkdir -p /home/node/.n8n/custom && 
             chown -R node:node /home/node/.n8n/custom && 
             n8n start"

volumes:
  n8n_data:

Deployment Steps

1. Build the plugin:

   npm run build
   

2. Start with Docker Compose:

   docker-compose up -d
   

3. Access n8n:

   • URL: http://localhost:5679
   • Username: admin
   • Password: password

Verification

# Check plugin installation
docker exec n8n-wechat ls -la /home/node/.n8n/custom

# Verify plugin files
docker exec n8n-wechat find /home/node/.n8n/custom -name '*.js' -type f

📚 Usage Examples

Example 1: Automated Content Publishing

{
  "workflow": {
    "nodes": [
      {
        "name": "Upload Thumbnail",
        "type": "n8n-nodes-wechat-official",
        "parameters": {
          "resource": "material",
          "operation": "uploadImage",
          "image": "{{ $binary.data.data }}"
        }
      },
      {
        "name": "Create Article Draft",
        "type": "n8n-nodes-wechat-official",
        "parameters": {
          "resource": "draft",
          "operation": "addDraft",
          "title": "{{ $json.title }}",
          "content": "{{ $json.content }}",
          "thumb_media_id": "{{ $node['Upload Thumbnail'].json.media_id }}"
        }
      },
      {
        "name": "Publish Article",
        "type": "n8n-nodes-wechat-official",
        "parameters": {
          "resource": "draft",
          "operation": "publishDraft",
          "media_id": "{{ $node['Create Article Draft'].json.media_id }}"
        }
      }
    ]
  }
}

Example 2: Batch Media Upload

{
  "resource": "material",
  "operation": "uploadMedia",
  "type": "image",
  "media": [
    {"name": "product1.jpg", "data": "base64_data_1"},
    {"name": "product2.jpg", "data": "base64_data_2"},
    {"name": "product3.jpg", "data": "base64_data_3"}
  ]
}

Example 3: AI-Powered Content Management

// AI assistant automatically manages WeChat content
const aiWorkflow = {
  trigger: 'schedule',
  actions: [
    {
      tool: 'wechat-official-account',
      operation: 'generateContent',
      parameters: {
        topic: 'daily news',
        style: 'professional',
        includeImages: true
      }
    },
    {
      tool: 'wechat-official-account', 
      operation: 'publishDraft',
      parameters: {
        scheduleTime: 'tomorrow 9:00 AM'
      }
    }
  ]
};

🔧 Development

Requirements

• Node.js: >= 20.15.0
• TypeScript: >= 5.8.0
• n8n: >= 1.0.0

Development Setup

# Clone repository
git clone https://github.com/xwang152-jack/n8n-nodes-wechat-official.git
cd n8n-nodes-wechat-official

# Install dependencies
npm install

# Start development mode
npm run dev

Available Scripts

# Build project
npm run build

# Run tests
npm test

# Run tests with coverage
npm run test:coverage

# Watch mode for tests
npm run test:watch

# Code linting
npm run lint

# Fix linting issues
npm run lintfix

# Format code
npm run format

Project Structure

n8n-nodes-wechat-official/
├── 📁 credentials/                 # Authentication credentials
│   └── WechatOfficialAccountApi.credentials.ts
├── 📁 nodes/
│   └── 📁 WechatOfficialAccount/  # Main node implementation
│       ├── 📁 types/              # TypeScript type definitions
│       ├── 📁 utils/              # Utility functions
│       ├── WechatOfficialAccount.node.ts
│       └── wechat.svg            # Node icon
├── 📁 test/                       # Test files
├── 📁 dist/                       # Built files
├── 📄 package.json
├── 📄 tsconfig.json
├── 📄 jest.config.js
└── 📄 README.md

Testing

# Run all tests
npm test

# Run specific test file
npm test -- WechatOfficialAccount.test.ts

# Run tests with coverage report
npm run test:coverage

Code Quality

This project maintains high code quality standards:

• ✅ TypeScript - Full type safety
• ✅ ESLint - Code linting and style enforcement
• ✅ Prettier - Code formatting
• ✅ Jest - Comprehensive testing
• ✅ Husky - Git hooks for quality checks

🤝 Contributing

We welcome contributions! Please see our Contributing Guide for details.

How to Contribute

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Development Guidelines

• Follow TypeScript best practices
• Write comprehensive tests for new features
• Update documentation for API changes
• Follow the existing code style
• Add meaningful commit messages

📄 License

MIT License - see the LICENSE file for details.

🆘 Support

Getting Help

If you encounter issues or need assistance:

1. 📖 Check Documentation - Review this README and inline documentation
2. 🔍 Search Issues - Look through existing GitHub issues
3. 🆕 Create New Issue - Submit a detailed bug report or feature request
4. 💬 Community Support - Join the n8n Community Forum
5. 📧 Direct Contact - Email: xwagn152@163.com

Troubleshooting

Common Issues

Q: "Access token invalid" error
A: Check your App ID and App Secret, ensure IP whitelist is configured correctly.

Q: "Media upload failed" error
A: Verify file format and size limits, check network connectivity.

Q: "Draft publishing failed" error
A: Ensure draft content is complete and complies with WeChat specifications.

API Limitations

• Access Token: Valid for 7200 seconds (2 hours) - automatically managed
• Temporary Materials: Valid for 3 days
• API Call Frequency: Follow WeChat Official Account Platform rate limits
• File Size Limits: Images (10MB), Voice (2MB), Video (10MB)

Resources

• 📖 WeChat Official Account API Documentation
• 🔗 n8n Community Nodes Documentation
• 🌐 WeChat Official Account Platform
• 💬 n8n Community Forum

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