46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
# backend/db/session.py
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from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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from sqlalchemy.pool import NullPool
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from sqlalchemy.orm import Session
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from dotenv import load_dotenv
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import os
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# Load environment variables
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load_dotenv()
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# Read .env settings
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USER = os.getenv("user")
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PASSWORD = os.getenv("password")
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HOST = os.getenv("host")
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PORT = os.getenv("port")
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DBNAME = os.getenv("dbname")
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# Supabase Transaction Pooler (IPv4-safe) URI
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DATABASE_URL = f"postgresql+psycopg2://{USER}:{PASSWORD}@{HOST}:{PORT}/{DBNAME}?sslmode=require"
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# SQLAlchemy engine with NullPool for Supabase
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engine = create_engine(DATABASE_URL, poolclass=NullPool)
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# Session factory (used for queries)
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# Base class for ORM models
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Base = declarative_base()
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# ───────────────────────────────
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# FastAPI helper (NEW, non-breaking)
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# ───────────────────────────────
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def get_db() -> Session:
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"""
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Yield a DB session for FastAPI dependencies.
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Closes the session automatically after the request.
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"""
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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() |