Extracción y análisis automático de facturas con ChatGPT-4o-mini a través de Telegram

• •Bot Token de Telegram
• •Pueden requerirse credenciales de autenticación para la API de destino
• •Clave de API de OpenAI

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        "content": "## Introduction\nUpload invoices via Telegram, receive structured data instantly. Perfect for accountants and finance teams.\n## How It Works\nTelegram bot receives invoices, downloads files, extracts data using OpenAI, then returns analysis.\n## Workflow Template\nTelegram Trigger → Document Check → Get File → HTTP Download → AI Extract → Format Response → Send to Telegram\n## Workflow Steps\n1. **Telegram Trigger:** Listens for uploads.\n2. **Document Check:** Validates files; routes errors.\n3. **Get File:** Retrieves metadata.\n4. **HTTP Download:** Fetches content.\n5. **AI Extract:** OpenAI parses invoice fields.\n6. **Format Response:** Structures data.\n7. **Send Analysis:** Delivers to chat.\n## Setup Instructions\n1. **Telegram Bot:** Create via BotFather, add credentials.\n2. **OpenAI Agent:** Add API key and extraction prompt.\n3. **HTTP Node:** Set authentication.\n4. **Parser:** Define invoice schema.\n5. **Error Handling:** Configure fallbacks.\n"
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        "content": "## Prerequisites\n- n8n instance\n- Telegram Bot Token\n- OpenAI API key\n## Customization\n- Database storage\n- Accounting software integration\n## Benefits\n- Eliminates manual entry\n- Reduces errors"
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