Initial commit for eventlens

backend/app/database.py

@@ -0,0 +1,27 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import declarative_base, sessionmaker
+
+from app.config import settings
+
+
+DATABASE_URL = (
+    f"mysql+pymysql://{settings.db_user}:{settings.db_password}"
+    f"@{settings.db_host}:{settings.db_port}/{settings.db_name}"
+)
+
+engine = create_engine(
+    DATABASE_URL,
+    pool_pre_ping=True,
+    future=True,
+)
+SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False, future=True)
+Base = declarative_base()
+
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+