Initial commit for new v2

app/database.py

@@ -0,0 +1,29 @@
+import datetime
+from typing import Any
+from typing import Generator
+
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import Session
+from sqlalchemy.orm import sessionmaker
+
+from app.config import SQLALCHEMY_DATABASE_URL
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False}
+)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+Base: Any = declarative_base()
+
+
+def now() -> datetime.datetime:
+    return datetime.datetime.now(datetime.timezone.utc)
+
+
+def get_db() -> Generator[Session, None, None]:
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()