FastAPI backend (Python 3.11, httpx for SignalR/GraphQL — no MSSQL ODBC), shares kitchen_db directly. React/TS/Vite fullscreen board frontend. Backend: auth.py (APP_SLUG=kds, SimpleNamespace), main.py (4 KDS migrations, SignalR start/stop), kds.py router, models (kds/settings/resos — read from kitchen_db), signalr_listener.py (backoff pre-existing), kds_graphql.py, database.py. Requirements stripped to ~9 packages; image ~400 MB lighter than kitchen (no MSSQL ODBC layer). Frontend: AuthGate (app=kds), single fullscreen route, dark board theme. KDS.tsx URL prefix patched (/api/kds/ → /kds/api/kds/), recipe images cross-app (/kitchen/api/recipes/). nginx: 5 blocks with SSE proxy headers on /kds/api/ block. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
38 lines
996 B
Python
38 lines
996 B
Python
import os
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from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
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from sqlalchemy.orm import DeclarativeBase
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DATABASE_URL = os.getenv(
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"DATABASE_URL",
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"postgresql+asyncpg://kitchen:kitchen_secret@localhost:5432/kitchen_gp"
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)
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# Convert standard postgres URL to asyncpg format
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if DATABASE_URL.startswith("postgresql://"):
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DATABASE_URL = DATABASE_URL.replace("postgresql://", "postgresql+asyncpg://", 1)
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engine = create_async_engine(
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DATABASE_URL,
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echo=False,
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pool_size=10, # Default is 5
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max_overflow=20, # Default is 10 - allows burst to 30 connections
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pool_pre_ping=True # Verify connections are alive before use
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)
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AsyncSessionLocal = async_sessionmaker(
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engine,
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class_=AsyncSession,
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expire_on_commit=False
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)
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class Base(DeclarativeBase):
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pass
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async def get_db():
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async with AsyncSessionLocal() as session:
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try:
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yield session
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finally:
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await session.close()
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