Tools to easily setup databases opinionated towards FastAPI and SQLModel
Project description
Database tools
Easy to understand and use tools that help you to create databases and interact with them.
Installation
pip install database-setup-tools
Features
- Database creation on app startup
- Thread-safe database session manager
- Opinionated towards
FastAPI
andSQLModel
but feasible with any other framework or puresqlalchemy
- Easily use a local database in your tests
Planned features
- Database migrations with
Alembic
Example
import random
import uvicorn
from fastapi import FastAPI, Depends
from sqlmodel import Session, SQLModel, Field
from database_setup_tools.session_manager import SessionManager
from database_setup_tools.setup import DatabaseSetup
DATABASE_URI = "sqlite:///test.db"
app = FastAPI()
session_manager = SessionManager(database_uri=DATABASE_URI)
class User(SQLModel, table=True):
""" User model """
id: int = Field(index=True, primary_key=True)
name: str
model_metadata = SQLModel.metadata
@app.post('/users/', response_model=User)
def add_random_user(session: Session = Depends(session_manager.get_session)):
""" Endpoint to add a user with a random name """
user = User(name=f'User {random.randint(0, 100)}')
session.add(user)
session.commit()
return user
@app.get('/users/', response_model=list[User])
def get_all_users(session: Session = Depends(session_manager.get_session)):
""" Endpoint to get all users """
return session.query(User).all()
if __name__ == '__main__':
database_setup = DatabaseSetup(model_metadata=model_metadata, database_uri=DATABASE_URI)
uvicorn.run(app, host='0.0.0.0', port=8080)
Example for pytest
conftest.py
database_setup = DatabaseSetup(model_metadata=model_metadata, database_uri=DATABASE_URI)
def pytest_sessionstart(session):
database_setup.drop_database()
database_setup.create_database()
test_users.py
session_manager = SessionManager(database_uri=DATABASE_URI)
@pytest.fixture
def session():
with session_manager.get_session() as session:
yield session
def test_create_user(session: Session):
user = User(name='Test User')
session.add(user)
session.commit()
assert session.query(User).count() == 1
assert session.query(User).first().name == 'Test User'
Development
Testing
- Spin up databases for local integration tests:
docker-compose -f tests/docker-compose.yaml up -d
- Create virtual environment & install dependencies:
poetry install
- Run tests:
poetry run pytest
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