WhatsApp Group Info

Retrieve WhatsApp group information using Green API, including participant count for tracking workshop attendance.

Prerequisites

1. •Green API account at green-api.com
2. •Instance created and authorized (QR code scanned)
3. •Credentials configured in .env file

Setup

1. Install Dependencies

cd /home/user/architect-workshops/.claude/skills/whatsapp-group-info/scripts
npm install

2. Configure Credentials

Copy .env.example to .env and fill in your credentials:

cp .env.example .env

Edit .env:

GREEN_API_INSTANCE_ID=your_instance_id
GREEN_API_TOKEN=your_api_token

Get these from green-api.com console.

Usage

Get Group Info

cd /home/user/architect-workshops/.claude/skills/whatsapp-group-info/scripts
npx ts-node get_group_info.ts "GROUP_ID"

GROUP_ID format: 120363123456789012@g.us

Example

npx ts-node get_group_info.ts "120363044291817037@g.us"

Output

Returns JSON with:

• •groupId - Group ID
• •subject - Group name
• •size - Number of participants
• •participants - Array of member details
• •owner - Group owner ID
• •creation - Creation timestamp

Workflow

1. Find Group ID

The Group ID should be stored in the workshop's workshop.md file under WhatsApp Group section.

2. Run the Script

npx ts-node get_group_info.ts "GROUP_ID_FROM_WORKSHOP"

3. Update Workshop Attendance

After getting the group size, update the workshop's attendance table:

**Attendance:**
| Metric | Count |
|--------|-------|
| WhatsApp Group Size | 45 |  <-- Update this

Integration with Workshop Updates

When user says "check group size for workshop X":

1. •Read the workshop.md to get the Green API Group ID
2. •Run this script with that Group ID
3. •Update the workshop.md attendance section with the size
4. •Inform user of the participant count

Notes

• •Your phone must be connected to internet for API to work
• •Group ID format: XXXXXXXXXX@g.us
• •If you're not admin, some fields may be empty (like invite link)
• •Rate limits may apply for frequent requests