feat: initial project setup

app/db/base.py

@@ -0,0 +1,18 @@
+from typing import Generator
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import Session, sessionmaker
+
+from app.config import settings
+
+engine = create_engine(settings.DATABASE_URI)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+def get_db() -> Generator[Session, None, None]:
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

app/db/dtos.py

@@ -0,0 +1,23 @@
+from datetime import datetime
+from typing import Optional
+from uuid import UUID
+
+from pydantic import BaseModel
+
+
+class WithStandardFields(BaseModel):
+    id: UUID
+    created_at: datetime
+    updated_at: Optional[datetime]
+
+    class Config:
+        orm_mode = True
+
+
+class AccountBase(BaseModel):
+    api_key: UUID
+    name: str
+
+
+class Account(AccountBase, WithStandardFields):
+    pass

app/db/models.py

@@ -0,0 +1,31 @@
+from typing import Optional
+import uuid
+
+from sqlalchemy import Column, DateTime, String, func
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import declarative_mixin, declared_attr, Mapped
+from sqlalchemy.ext.declarative import declarative_base
+
+Base = declarative_base()
+
+
+@declarative_mixin
+class WithStandardFields:
+    @declared_attr
+    def created_at(cls) -> Mapped[DateTime]:
+        return Column(DateTime, server_default=func.now(), nullable=False)
+
+    @declared_attr
+    def updated_at(cls) -> Mapped[Optional[DateTime]]:
+        return Column(DateTime, onupdate=func.now())
+
+    @declared_attr
+    def id(cls) -> Mapped[UUID]:
+        return Column(UUID(as_uuid=True), primary_key=True, index=True, default=uuid.uuid4)
+
+
+class Account(Base, WithStandardFields):
+    __tablename__ = "accounts"
+
+    api_key = Column(UUID(as_uuid=True), index=True, default=uuid.uuid4)
+    name = Column(String(length=256), unique=True)