After spring it comes the summer.
Project description
summer-boot
After spring it comes the summer.
Installation
pip install python-summer-boot
Inversion of control
summer-boot provides an easy dependency injection by splitting classes between services and injectors. A service is a dependency and an injector is a class that consumes dependencies.
You can discover services with the disvover_services
function.
It is recommended to create a setup file located in your sources root and call discover services function there, once.
Here you have an example:
import os
from summer.inversion_of_control.service_locator import get_executable_parent_path, discover_services
executable_parent_path = get_executable_parent_path(os.getcwd())
def setup():
discover_services(executable_parent_path)
Remember to call setup function before use any injection.
You can define services using the @service
decorator at class level.
from summer.inversion_of_control.dependencies import service
from src.mock_entity.core.i_repository import IRepository
@service()
class PostgreRepository(IRepository):
def custom_method(self):
return "Postgre respoistory"
Here the code of IRepository
:
from abc import ABC, abstractmethod
class IRepository(ABC):
@abstractmethod
def custom_method(self) -> str:
raise NotImplementedError
Finally, you can consume injected dependencies with the @autowired
decorator, upside the function that needs
dependencies. In most of the cases it will be the __init__
function:
from summer.inversion_of_control.dependencies import autowired
from src.mock_entity.core.i_repository import IRepository
class UseCase:
@autowired
def __init__(self, repository: IRepository):
self.repository = repository
def my_use_case(self) -> str:
return self.repository.custom_method()
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