first one

bot/app/db/base.py

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+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+engine = create_engine("postgresql+psycopg2://user:password@postgres:5432/db")
+Session = sessionmaker(bind=engine)
+
+Base = declarative_base()

bot/app/db/engine.py

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+from sqlalchemy import create_engine, MetaData
+from db.settings import Settings
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.ext.declarative import declarative_base
+
+
+class Database:
+    def __init__(self):
+        self.engine = create_engine("postgresql+psycopg2://user:password@postgres:5432/db")
+        self.meta = MetaData()
+        self.engine.connect()
+        self.meta.create_all(bind=self.engine)
+        self._Session = sessionmaker(bind=self.engine)
+        self.base = declarative_base()
+
+    def session(self):
+        return self._Session

bot/app/db/models.py

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+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy import Column, Integer, String, BigInteger, Uuid
+from sqlalchemy.orm import relationship
+
+import uuid
+
+from db.base import Base
+
+class User(Base):
+    __tablename__ = "user"
+
+    id = Column(BigInteger, primary_key=True)
+    name = Column(String)
+    username = Column(String)
+#
+#
+# class Queue(Base):
+#     __tablename__ = "queue"
+#
+#     id = Column(Uuid, primary_key=True, default=uuid.uuid4())
+#     owner = relationship(User)

bot/app/db/settings.py

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+from dataclasses import dataclass
+
+@dataclass
+class Settings:
+    dialect: str = "postgresql"
+    driver: str = "psycopg2"
+    user: str = "user"
+    password: str = "password"
+    db_name: str = "db"
+    host: str = "postgres"
+    port: int = 5432
+
+    @property
+    def uri(self):
+        return f"{self.dialect}+{self.driver}://{self.user}:{self.password}@{self.host}:{self.port}/{self.db_name}"