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
39 lines
1.8 KiB
Python
39 lines
1.8 KiB
Python
from sqlalchemy import Column, Integer, String, Float, Boolean, DateTime, ForeignKey
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from sqlalchemy.sql import func
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from sqlalchemy.orm import relationship
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from app.db.base import Base
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class Wallet(Base):
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__tablename__ = "wallets"
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id = Column(Integer, primary_key=True, index=True)
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user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
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currency = Column(String, nullable=False) # BTC, ETH, USDT
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address = Column(String, unique=True, nullable=False)
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private_key_encrypted = Column(String, nullable=False)
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balance = Column(Float, default=0.0)
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is_active = Column(Boolean, default=True)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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updated_at = Column(DateTime(timezone=True), onupdate=func.now())
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# Relationships
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owner = relationship("User", back_populates="wallets")
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transactions_sent = relationship("Transaction", foreign_keys="Transaction.from_wallet_id", back_populates="from_wallet")
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transactions_received = relationship("Transaction", foreign_keys="Transaction.to_wallet_id", back_populates="to_wallet")
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class FiatAccount(Base):
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__tablename__ = "fiat_accounts"
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id = Column(Integer, primary_key=True, index=True)
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user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
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currency = Column(String, nullable=False) # USD, EUR, GBP
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balance = Column(Float, default=0.0)
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is_active = Column(Boolean, default=True)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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updated_at = Column(DateTime(timezone=True), onupdate=func.now())
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# Relationships
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owner = relationship("User", back_populates="fiat_accounts")
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deposits = relationship("FiatTransaction", foreign_keys="FiatTransaction.account_id", back_populates="account") |