Working on user, backend.

backend/database.py

@@ -0,0 +1,18 @@
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+from settings import config
+
+POSTGRES_SERVER = config.POSTGRES_SERVER
+POSTGRES_USER = config.POSTGRES_USER
+POSTGRES_PASSWORD = config.POSTGRES_PASSWORD
+POSTGRES_DB = config.POSTGRES_DB
+
+SQLALCHEMY_DATABASE_URL = f"postgresql://{POSTGRES_USER}:{POSTGRES_PASSWORD}@{POSTGRES_SERVER}/{POSTGRES_DB}"
+
+engine = create_engine(SQLALCHEMY_DATABASE_URL)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+BaseModel = declarative_base()