feat: Replace deprecated injector with custom DI framework #2
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Replaces the deprecated `alecthomas/injector` library with a new, custom-built dependency injection framework named `custom_injector`.
Key changes and features include:
- **New Core DI Framework (`custom_injector`):**
- Supports class, factory, and value providers.
- Implements robust Transient and Singleton scopes.
- Provides automatic constructor injection based on type hints.
- Includes basic circular dependency detection.
- **Updated Integrations:**
- All `fastapi_injector` components (for both FastAPI and Taskiq) have been refactored to use the new `custom_injector`. This includes:
- Injector attachment mechanisms.
- `Injected`, `SyncInjected`, `InjectedTaskiq`, and `SyncInjectedTaskiq` decorators.
- Request scoping logic (`RequestScope`, `RequestScopeFactory`, `InjectorMiddleware`).
- **Testing:**
- Added comprehensive unit tests for the `custom_injector` core.
- Updated existing integration tests for FastAPI (`tests/test_injection.py`, `tests/test_request_scope.py`) to be compatible with the new framework.
- **Dependency Management:**
- Removed `alecthomas/injector` from the project's dependencies in `pyproject.toml`.
- **Documentation:**
- Updated `README.md` to reflect the new DI system, its API (e.g., `injector.bind()` syntax, scope usage), and updated examples.
This change addresses the issue of using a deprecated library and aims to provide a more stable and maintainable foundation for dependency injection within the `fastapi-injector` project, with particular attention to reliable singleton instance management.
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Replaces the deprecated
alecthomas/injectorlibrary with a new, custom-built dependency injection framework namedcustom_injector.Key changes and features include:
New Core DI Framework (
custom_injector):Updated Integrations:
fastapi_injectorcomponents (for both FastAPI and Taskiq) have been refactored to use the newcustom_injector. This includes: - Injector attachment mechanisms. -Injected,SyncInjected,InjectedTaskiq, andSyncInjectedTaskiqdecorators. - Request scoping logic (RequestScope,RequestScopeFactory,InjectorMiddleware).Testing:
custom_injectorcore.tests/test_injection.py,tests/test_request_scope.py) to be compatible with the new framework.Dependency Management:
alecthomas/injectorfrom the project's dependencies inpyproject.toml.Documentation:
README.mdto reflect the new DI system, its API (e.g.,injector.bind()syntax, scope usage), and updated examples.This change addresses the issue of using a deprecated library and aims to provide a more stable and maintainable foundation for dependency injection within the
fastapi-injectorproject, with particular attention to reliable singleton instance management.