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

⚡ 65 views · 🎬 Content Creation & Video

Description

🤖 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:

Telegram Bot Token - Create a bot via @BotFather
WaveSpeed API Key - Sign up at WaveSpeed
S3-compatible Storage - MinIO, AWS S3, or any S3-compatible service
Mercado Pago Account (optional) - For payment integration
n8n Data Table - Create a table with the required schema

📊 Data Table Schema

Create a Data Table with the following columns:

Column	Type	Description
`chat_id`	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)
`aspect_ratio`	String	Preferred aspect ratio
`user_default_prompt`	String	Custom default prompt
`number_images`	Number	Total images generated
`number_videos`	Number	Total videos generated
`demo_sended`	Boolean	Welcome demo sent flag

⚡ Quick Setup

Import the workflow into your n8n instance
Configure the Global Environment node with your settings:
- botName: Your bot’s display name
- botToken: Your Telegram bot token
- dataTableId: Your n8n Data Table ID
- bucketName: Your S3 bucket name
- initialCredits: Credits given to new users
- generateImageCost4k: Cost per 4K image
- generateImageCost8k: Cost per 8K image
Set up credentials:
- Telegram API credentials
- WaveSpeed API credentials
- S3 credentials
- Mercado Pago credentials (if using payments)
Activate the workflow

🎮 Bot Commands

Command	Description
`/start`	Initialize bot and receive welcome message
`menu`	Return to main menu
`config`	Open settings menu
Any text	Generate image from prompt (when in generation mode)
Photo + caption	Edit the photo based on the caption

🔄 Workflow Flow

User Message → Telegram Trigger → Route by Status
                                        ↓
                    ┌───────────────────┼───────────────────┐
                    ↓                   ↓                   ↓
              New User            Generate Image       Edit Image
                    ↓                   ↓                   ↓
             Welcome Flow        Check Credits        Check Credits
                    ↓                   ↓                   ↓
            Create User         Submit to WaveSpeed    Upload to S3
                    ↓                   ↓                   ↓
             Show Menu           Poll for Result      Submit Edit
                                        ↓                   ↓
                                 Download Image      Poll for Result
                                        ↓                   ↓
                                 Send to User ←←←←←←←←←←←←←┘

📝 Notes

The workflow uses polling to check generation status - WaveSpeed processes may take up to 1 minute
Credits are deducted when the task is submitted and refunded if generation fails
All user states are managed through the Data Table for persistence across restarts

📄 License

Free to use and modify. Attribution appreciated but not required.

🔗 Nodes Used

Edit Image, HTTP Request, Webhook, Telegram, Telegram Trigger, S3

📥 Import

Download workflow.json and import into n8n: Workflow menu → Import from File

📖 Importing guide · 🔑 Credential setup