init commit

app/database/__init__.py

@@ -0,0 +1,33 @@
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
+from sqlalchemy import pool
+from app.models import Base
+import os
+
+DATABASE_URL = os.getenv(
+    'DATABASE_URL',
+    'sqlite+aiosqlite:///./autoposter.db'
+)
+
+engine = create_async_engine(
+    DATABASE_URL,
+    echo=False,
+    poolclass=pool.NullPool
+)
+
+AsyncSessionLocal = async_sessionmaker(
+    engine,
+    class_=AsyncSession,
+    expire_on_commit=False
+)
+
+
+async def init_db():
+    """Инициализация БД - создание всех таблиц"""
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+
+
+async def get_session():
+    """Получить сессию БД"""
+    async with AsyncSessionLocal() as session:
+        yield session