Generate AI images via Telegram with WaveSpeed, credit system, PIX and S3

🤖 Generate images via Telegram using an AI bot with a credit system and S3 storage A complete, production-ready Telegram bot for AI-powered image generation and editing, featuring a built-in credit system, payment integration, and cloud storage. --- ✨ Features 🎨 AI Image Generation - Text-to-Image: Generate stunning images from text prompts using the Nano Banana Pro Ultra model via WaveSpeed API - Image-to-Image Editing: Edit existing images by sending a photo with a caption describing the desired changes - Multiple Resolutions: Support for both 4K and 8K output quality - Flexible Aspect Ratios: Choose from 10 different aspect ratios (1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9) 💳 Credit Management System - Per-generation billing: Different costs for 4K vs 8K resolution - Balance tracking: Real-time credit balance displayed to users - Initial credits: New users receive starter credits automatically - Insufficient balance handling: Graceful messages when credits run out Here's the adjusted payment section: --- 💰 Payment Integration (Mercado Pago PIX) > About PIX: PIX is Brazil's instant payment system, launched by the Central Bank of Brazil in 2020. It allows instant money transfers 24/7, 365 days a year, using QR codes or copy-paste codes. It has become the most popular payment method in Brazil due to its speed and zero fees for individuals. This workflow includes a fully integrated PIX payment flow as a reference implementation. You can adapt it to your local payment provider. Features: - Multiple deposit options: Pre-configured credit packages (R$ 3, R$ 6, R$ 10) - QR Code generation: Automatic PIX QR code sent directly to users via Telegram - Copy-paste code: PIX code provided for manual payment - Webhook confirmation: Real-time payment status updates via Mercado Pago webhooks - Auto credit top-up: Credits added automatically upon payment approval - Payment status handling: Supports approved, pending, and rejected states > 💡 Tip: To adapt this for other regions, replace the Mercado Pago nodes with your preferred payment gateway (Stripe, PayPal, etc.) while keeping the same credit update logic. --- ⚙️ User Configuration - Resolution settings: Users can set their preferred default resolution - Aspect ratio preferences: Save preferred aspect ratio for future generations - Custom default prompts: Set a default prompt that's automatically appended to all generations - Persistent settings: All preferences stored in n8n Data Tables 📦 Cloud Storage (S3/MinIO) - Automatic upload: Generated images are automatically uploaded to S3-compatible storage - Persistent URLs: Images remain accessible via permanent links - Edit from storage: Reference previously uploaded images for editing --- 🛠️ Tech Stack | Component | Technology | |-----------|------------| | Bot Platform | Telegram Bot API | | AI Generation | WaveSpeed API (Nano Banana Pro) | | Storage | S3-compatible (MinIO/AWS S3) | | Database | n8n Data Tables | | Payments | Mercado Pago PIX | | Automation | n8n | --- 📋 Prerequisites Before using this workflow, you'll need: 1. Telegram Bot Token - Create a bot via @BotFather 2. WaveSpeed API Key - Sign up at WaveSpeed 3. S3-compatible Storage - MinIO, AWS S3, or any S3-compatible service 4. Mercado Pago Account (optional) - For payment integration 5. n8n Data Table - Create a table with the required schema --- 📊 Data Table Schema Create a Data Table with the following columns: | Column | Type | Description | |--------|------|-------------| | chatid | String | Telegram chat ID (primary key) | | username | String | Telegram username | | status | String | Current user state in the flow | | credits | String | User's credit balance | | resolution | String | Preferred resolution (4k/8k) | | aspectratio | String | Preferred aspect ratio | | userdefaultprompt | String | Custom default prompt | | numberimages | Number | Total images generated | | numbervideos | Number | Total videos generated | | demosended | Boolean | Wel