SimpleFIN Telegram Bot Integration Project by Michael GuberSimpleFIN Telegram Bot Integration Project by Michael Guber

SimpleFIN Telegram Bot Integration Project

Michael Guber

Completed work

Data Scraper

Dot Net Backend Developer

ASP.NET Core

Python

FinTech & Payments

SimpleFIN Telegram Bot

🏦 Complete Financial Integration Solution - A comprehensive multi-language ecosystem with C# (.NET 8) and Python implementations for SimpleFIN banking integration through Telegram Bot, Web API, and WebApp interfaces.

A dual-language implementation of SimpleFIN financial accounts integration with Telegram. Choose between C# (.NET 8) or Python implementations, both featuring secure configuration, real-time financial data access, and modern web interfaces.

🚀 Available Implementations

🔷 C# (.NET 8) Version

Enterprise-grade .NET 8 console application and ASP.NET Core API

Advanced Configuration with appsettings.json and environment variables

VS Code Integration with complete development environment

GitHub Actions CI/CD for automated building and testing

📂 Location: /csharp | 📖 Documentation: C# README

🐍 Python Version

Modern async/await Python implementation with FastAPI

Type Safety with full type hints and Pydantic models

Auto-Documentation with FastAPI's OpenAPI integration

Flexible Deployment options for containers and cloud platforms

📂 Location: /python | 📖 Documentation: Python README

🎯 Choose Your Implementation

Feature C# (.NET 8) Python Performance ⭐⭐⭐⭐⭐ Compiled, very fast ⭐⭐⭐⭐ Fast with async/await Memory Usage ⭐⭐⭐⭐ Efficient ⭐⭐⭐ Moderate Development Speed ⭐⭐⭐ Structured, enterprise ⭐⭐⭐⭐⭐ Rapid prototyping Deployment ⭐⭐⭐⭐⭐ Single executable ⭐⭐⭐ Runtime required Documentation ⭐⭐⭐⭐ XML docs + IntelliSense ⭐⭐⭐⭐⭐ Auto-generated API docs Type Safety ⭐⭐⭐⭐⭐ Compile-time checking ⭐⭐⭐⭐ Runtime with type hints Ecosystem ⭐⭐⭐⭐ .NET ecosystem ⭐⭐⭐⭐⭐ Vast Python libraries

🌟 Core Features (Both Implementations)

🤖 Telegram Bot Commands

/start and /help - Interactive command guidance

/add - Secure bank connection via SimpleFIN tokens

/accounts and /refresh - Real-time account data with balance information

/remove - Secure bank connection removal

/web - Launch integrated WebApp interface

🌐 REST API Endpoints

GET /api/accounts?user_id={id} - Retrieve user's bank connections

CORS enabled for cross-origin requests

Error handling with structured responses

Health checks and monitoring endpoints

📱 Modern WebApp Interface

Telegram WebApp API integration with native theming

Responsive design for mobile and desktop

Real-time data synchronization with bot and API

Enhanced UX with loading states and error handling

⚙️ Advanced Configuration

Multi-environment support (Development/Production)

Environment variables for secure production deployment

Validation with helpful error messages for developers

Flexible settings for different deployment scenarios

🏗️ Project Structure

SimpleFinTelegramBot/
├── 📁 csharp/                    # C# (.NET 8) Implementation
│   ├── SimpleFinBot/             # Console Bot Application
│   ├── SimpleFinWebApi/          # ASP.NET Core API
│   ├── SimpleFinWebApp/          # Static WebApp
│   ├── .github/workflows/        # CI/CD Pipeline
│   └── README.md                 # C# Documentation
├── 📁 python/                    # Python Implementation
│   ├── SimpleFinBot/             # Async Python Bot
│   ├── SimpleFinWebApi/          # FastAPI Backend
│   ├── SimpleFinWebApp/          # Enhanced WebApp
│   └── README.md                 # Python Documentation
├── README.md                     # This file
├── DESCRIPTION.md                # Project overview
└── GITHUB_DESCRIPTION.md         # Repository metadata

� Quick Start

For C# (.NET 8):

cd csharp
dotnet restore
# Configure bot token in appsettings.json or environment variables
dotnet run --project SimpleFinWebApi  # Terminal 1
dotnet run --project SimpleFinBot     # Terminal 2

For Python:

cd python/SimpleFinBot
pip install -r requirements.txt
# Configure bot token in config.json or environment variables
cd ../SimpleFinWebApi && pip install -r requirements.txt
python api.py          # Terminal 1
cd ../SimpleFinBot && python bot.py  # Terminal 2

🔒 Security & Best Practices

Both implementations include:

✅ Secure token management with environment variable support

✅ Input validation and sanitization

✅ Parameterized database queries preventing SQL injection

✅ CORS configuration for API security

✅ Error handling with user-friendly messages

✅ Configuration validation with startup checks

📚 Documentation

Getting Started:

🔷 C# Setup Guide - Complete .NET 8 setup instructions

🐍 Python Setup Guide - Python installation and configuration

⚙️ C# Configuration - Advanced C# configuration

⚙️ Python Configuration - Python configuration guide

Technical Details:

📖 Project Overview - Architecture and design decisions

🏷️ Repository Info - GitHub metadata and tags

📋 Usage Workflow

Setup: Choose your preferred implementation (C# or Python)

Configure: Set up your Telegram bot token via @BotFather

Deploy: Run both the API server and bot application

Connect: Start a chat with your bot and use /add to connect banks

Access: Use bot commands or the WebApp interface to view account data

🧪 Development & Testing

C# Development:

VS Code: Complete development environment with tasks and debugging

GitHub Actions: Automated CI/CD pipeline for testing and building

IntelliSense: Full IDE support with compile-time error checking

Python Development:

FastAPI Docs: Automatic API documentation at /docs

Type Hints: Full type safety with runtime validation

Hot Reload: Development server with auto-restart on changes

🤝 Contributing

Choose your preferred implementation (C# or Python)

Fork the repository

Create a feature branch

Follow the coding standards for your chosen language

Submit a pull request with tests

📄 License

This project serves as a comprehensive template for SimpleFIN integration with Telegram bots in both C# and Python.

🔷 Choose C# for enterprise applications with high performance requirements 🐍 Choose Python for rapid development and extensive ecosystem integration

Both implementations provide identical functionality with language-specific optimizations!

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Completed work

Posted Feb 5, 2026

A comprehensive multi-language ecosystem with C# and Python implementations for SimpleFIN banking integration through Telegram Bot, Web API, App interfaces/

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