first commit

databases/sql_models/postgres_database.py

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+from api_configs import WagDatabase
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import scoped_session, sessionmaker
+from sqlalchemy.ext.declarative import declarative_base
+
+
+engine_config = {
+    "url": WagDatabase.DATABASE_URL,
+    "pool_size": 10,
+    "max_overflow": 0,
+    "echo": False,
+}
+
+engine = create_engine(**engine_config)
+session_config = {"autoflush": True, "bind": engine, "echo": True}
+SessionLocal = sessionmaker(**session_config)
+session = scoped_session(sessionmaker(bind=engine))
+session.expunge_all()
+
+Base = declarative_base()
+Base.session = session