// n8n HTTP Request Node - Send Message
// URL: https://backend.blooio.com/v2/api/chats/{{encodeURIComponent($json.phone)}}/messages
{
  "method": "POST",
  "url": "https://backend.blooio.com/v2/api/chats/%2B15551234567/messages",
  "headers": {
    "Authorization": "Bearer {{$json.apiKey}}",
    "Content-Type": "application/json"
  },
  "body": {
    "text": "Your appointment is confirmed for tomorrow at 3 PM",
    "attachments": ["https://example.com/image.png"]
  }
}

// Response (202 Accepted):
// { "message_id": "msg_abc123", "status": "queued" }