ab87d3c506
- Built complete CEX platform with FastAPI and Python - JWT-based authentication system with secure password hashing - Multi-currency crypto wallet support (BTC, ETH, USDT) - Fiat account management (USD, EUR, GBP) - Local transaction signing without external APIs - Comprehensive transaction handling (send/receive/deposit/withdraw) - SQLAlchemy models with Alembic migrations - Security middleware (rate limiting, headers, logging) - Input validation and sanitization - Encrypted private key storage with PBKDF2 - Standardized codebase architecture with service layer pattern - Complete API documentation with health endpoints - Comprehensive README with setup instructions Features: - User registration and authentication - Crypto wallet creation and management - Secure transaction signing using local private keys - Fiat deposit/withdrawal system - Transaction history and tracking - Rate limiting and security headers - Input validation for all endpoints - Error handling and logging
24 lines
547 B
Python
24 lines
547 B
Python
from sqlalchemy import create_engine
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from sqlalchemy.orm import sessionmaker
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from pathlib import Path
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# Ensure storage directory exists
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DB_DIR = Path("/app/storage/db")
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DB_DIR.mkdir(parents=True, exist_ok=True)
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SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_DIR}/db.sqlite"
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engine = create_engine(
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SQLALCHEMY_DATABASE_URL,
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connect_args={"check_same_thread": False}
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)
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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def get_db():
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close() |