Initial commit

backend/app/core/config.py

@@ -0,0 +1,97 @@
+import os
+from pathlib import Path
+from pydantic_settings import BaseSettings
+from functools import lru_cache
+
+# 프로젝트 루트 디렉토리 (backend의 상위 디렉토리)
+BASE_DIR = Path(__file__).resolve().parent.parent.parent
+BACKEND_ENV_FILE = BASE_DIR / ".env"
+
+
+class Settings(BaseSettings):
+    # Application
+    APP_NAME: str = "Auto Stock Trading System"
+    ENVIRONMENT: str = "development"
+    DEBUG: bool = True
+    SECRET_KEY: str = "change-this-secret-key"
+    
+    # Server
+    BACKEND_HOST: str = "0.0.0.0"
+    BACKEND_PORT: int = 8000
+    
+    # Database
+    DATABASE_URL: str = "postgresql://autostock:autostock_password@localhost:5432/autostock_db"
+    
+    # Redis
+    REDIS_URL: str = "redis://localhost:6379/0"
+    
+    # RabbitMQ
+    RABBITMQ_URL: str = "amqp://autostock:autostock_password@localhost:5672/"
+    
+    # Korea Investment API
+    KOREA_INVESTMENT_APP_KEY: str = ""
+    KOREA_INVESTMENT_APP_SECRET: str = ""
+    KOREA_INVESTMENT_ACCOUNT_NUMBER: str = ""
+    KOREA_INVESTMENT_API_BASE_URL: str = "https://openapi.koreainvestment.com:9443"
+    
+    # Alias for backward compatibility with .env file
+    KIS_APP_KEY: str = ""
+    KIS_APP_SECRET: str = ""
+    KIS_ACCOUNT_NO: str = ""
+    KIS_BASE_URL: str = ""
+    
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        # Use KIS_* values if KOREA_INVESTMENT_* are empty
+        if not self.KOREA_INVESTMENT_APP_KEY and self.KIS_APP_KEY:
+            self.KOREA_INVESTMENT_APP_KEY = self.KIS_APP_KEY
+        if not self.KOREA_INVESTMENT_APP_SECRET and self.KIS_APP_SECRET:
+            self.KOREA_INVESTMENT_APP_SECRET = self.KIS_APP_SECRET
+        if not self.KOREA_INVESTMENT_ACCOUNT_NUMBER and self.KIS_ACCOUNT_NO:
+            self.KOREA_INVESTMENT_ACCOUNT_NUMBER = self.KIS_ACCOUNT_NO
+        if self.KIS_BASE_URL:
+            self.KOREA_INVESTMENT_API_BASE_URL = self.KIS_BASE_URL
+    
+    # Claude AI
+    ANTHROPIC_API_KEY: str = ""
+    
+    # MCP Server
+    MCP_SERVER_URL: str = "http://localhost:8001"
+    
+    # News API
+    NEWS_API_KEY: str = ""
+    
+    # Logging
+    LOG_LEVEL: str = "INFO"
+    
+    # Trading Settings
+    MAX_POSITION_SIZE: float = 0.1  # 10% of portfolio
+    MAX_DAILY_TRADES: int = 10
+    STOP_LOSS_PERCENT: float = -5.0
+    TAKE_PROFIT_PERCENT: float = 15.0
+    
+    # API Rate Limiting & Retry Settings (모의투자 API 안전 운영)
+    API_MAX_RETRIES: int = 3  # 최대 재시도 횟수
+    API_RETRY_DELAY: float = 1.5  # 초기 재시도 대기 시간 (초)
+    API_RETRY_BACKOFF: float = 2.0  # 지수 백오프 배율
+    API_MIN_REQUEST_INTERVAL: float = 0.5  # 최소 요청 간격 (초) - 초당 2회 권장
+    API_MAX_CONCURRENT_REQUESTS: int = 2  # 동시 최대 요청 수
+    API_TIMEOUT: float = 30.0  # API 타임아웃 (초)
+    
+    # Monitoring & Alerting
+    API_ERROR_THRESHOLD: float = 0.3  # 오류율 임계값 (30%)
+    API_MONITORING_WINDOW: int = 100  # 모니터링 윈도우 (최근 N개 요청)
+    
+    class Config:
+        env_file = str(BACKEND_ENV_FILE) if BACKEND_ENV_FILE.exists() else ".env"
+        case_sensitive = True
+        extra = "ignore"  # .env 파일의 추가 필드 무시
+        env_file_encoding = "utf-8"
+
+
+@lru_cache()
+def get_settings() -> Settings:
+    return Settings()
+
+
+settings = get_settings()

backend/app/core/database.py

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+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+from app.core.config import settings
+
+# PostgreSQL 연결 URL 변환 (asyncpg 사용)
+DATABASE_URL = settings.DATABASE_URL
+if DATABASE_URL.startswith("postgresql://"):
+    DATABASE_URL = DATABASE_URL.replace("postgresql://", "postgresql+asyncpg://")
+
+engine = create_async_engine(
+    DATABASE_URL,
+    echo=settings.DEBUG,
+    future=True,
+    pool_pre_ping=True,
+    pool_size=10,
+    max_overflow=20,
+    connect_args={
+        "timeout": 60,
+        "command_timeout": 60,
+    }
+)
+
+AsyncSessionLocal = sessionmaker(
+    engine,
+    class_=AsyncSession,
+    expire_on_commit=False,
+)
+
+Base = declarative_base()
+
+
+async def get_db():
+    async with AsyncSessionLocal() as session:
+        try:
+            yield session
+        finally:
+            await session.close()