: The library is commonly used to simplify SOLID principles in frameworks like Django and FastAPI .
from injector import Module, singleton class MyModule(Module): def configure(self, binder): # Always provide the same instance (Singleton) binder.bind(Database, to=Database(), scope=singleton) Use code with caution. Copied to clipboard
For further details, consult the official Injector documentation . Make Your Django Project Less Confusing with Design Pattern injector.py
: Marks constructors or methods that need dependencies automatically provided.
: The central orchestrator that builds the dependency graph and provides objects to your application. 3. Basic Implementation Guide Step A: Define Your Classes : The library is commonly used to simplify
Instantiate the Injector and use it to retrieve your root object.
Use type hints to declare what a class needs. The framework uses these hints to "look up" the correct dependency. Make Your Django Project Less Confusing with Design
If you have multiple implementations for one interface (e.g., a "TestDB" and a "LiveDB"), use a Module to specify which one to use.