curl -X POST "https://app.whattalk.ai/api/user/whatsapp/send" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "sender_id": 12,
    "template_id": 45,
    "recipient_phone": "+1234567890",
    "recipient_name": "John Doe",
    "variables": {
      "1": "John",
      "2": "January 15, 2026",
      "3": "2:00 PM"
    }
  }'

curl -X POST "https://app.whattalk.ai/api/user/whatsapp/send" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "sender_id": 12,
    "template_id": 46,
    "recipient_phone": "+1234567890"
  }'

const response = await fetch(
  'https://app.whattalk.ai/api/user/whatsapp/send',
  {
    method: 'POST',
    headers: {
      'Authorization': 'Bearer YOUR_API_KEY',
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      sender_id: 12,
      template_id: 45,
      recipient_phone: '+1234567890',
      recipient_name: 'John Doe',
      variables: {
        '1': 'John',
        '2': 'January 15, 2026',
        '3': '2:00 PM'
      }
    })
  }
);

const data = await response.json();
console.log(data);

import requests

response = requests.post(
    'https://app.whattalk.ai/api/user/whatsapp/send',
    headers={
        'Authorization': 'Bearer YOUR_API_KEY',
        'Content-Type': 'application/json'
    },
    json={
        'sender_id': 12,
        'template_id': 45,
        'recipient_phone': '+1234567890',
        'recipient_name': 'John Doe',
        'variables': {
            '1': 'John',
            '2': 'January 15, 2026',
            '3': '2:00 PM'
        }
    }
)

print(response.json())

{
  "success": true,
  "conversation_id": 1234,
  "message_id": 567,
  "whatsapp_message_id": 890,
  "message_sid": "SMxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "status": "queued"
}

{
  "success": false,
  "error": "Insufficient balance. Please top up your account.",
  "error_code": "INSUFFICIENT_BALANCE"
}

{
  "success": false,
  "error": "Sender not found or does not belong to you",
  "error_code": "SENDER_NOT_FOUND"
}

{
  "success": false,
  "error": "Template not found or does not belong to this sender",
  "error_code": "TEMPLATE_NOT_FOUND"
}

{
  "success": false,
  "error": "Template is not approved. Current status: pending",
  "error_code": "TEMPLATE_NOT_APPROVED"
}

{
  "success": false,
  "error": "Invalid phone number format. Use E.164 format (e.g., +14155551234).",
  "error_code": "INVALID_PHONE"
}

{
  "success": false,
  "error": "Sender is not online. Current status: Offline",
  "error_code": "SENDER_OFFLINE"
}