fractal-repositories 0.0.13

Fractal Repositories is an implementation of the repository pattern of Domain Driven Design (DDD) for building SOLID logic for your Python applications.

Fractal Repositories

Fractal Repositories is an implementation of the repository pattern of Domain Driven Design (DDD) for building SOLID logic for your Python applications.

Installation

pip install fractal-repositories

Development

Setup the development environment by running:

make deps
pre-commit install

Happy coding.

Occasionally you can run:

make lint

This is not explicitly necessary because the git hook does the same thing.

Do not disable the git hooks upon commit!

Usage

To get started, define an Entity you would like to store:

from dataclasses import dataclass

from fractal_repositories.core.entity import Entity


@dataclass
class DemoModel(Entity):
    id: str
    name: str

Next, define the generic Repository:

from abc import ABC

from fractal_repositories.core.repositories import Repository


class DemoRepository(Repository[DemoModel], ABC):
    entity = DemoModel

Now choose your target storage system, e.g., Google Firestore and define the adapter:

from fractal_repositories.contrib.gcp.firestore.mixins import FirestoreRepositoryMixin


class FirestoreDemoRepository(DemoRepository, FirestoreRepositoryMixin[DemoModel]):
    ...

Contrib

Fractal Repositories comes with ready to use adapter mixins for:

• Django
• SQLAlchemy
• Mongo
• Google Firestore
• Elastic