Introduction

more-di is a crate containing all of the fundamental abstractions for dependency injection (DI) in Rust. Any trait or struct can be used as an injected service.

Design Tenets

• Add, remove, or replace injected services
• Mitigate sequence coupling in service registration
• Support the most common service lifetimes
• Service registry exploration
• Separation of mutable service collection and immutable service provider
• Proc macros are a convenience, not a requirement
• Enable validation of required services, missing services, and circular references
• Support traits and structures defined in external crates
• Support asynchronous contexts
• Enable extensibility across crates

Crate Features

This crate provides the following features:

• default - Abstractions for dependency injection, plus the builder and inject features
• builder - Functions for configuring service descriptors
• async - Use dependencies in an asynchronous context
• inject - Code-generate common injection scenarios
• lazy - Lazy-initialize service resolution
• fmt - Additional output formatting
• alias - Use alternate type aliases

Contributing

more-di is free and open source. You can find the source code on GitHub and issues and feature requests can be posted on the GitHub issue tracker. more-di relies on the community to fix bugs and add features: if you'd like to contribute, please read the CONTRIBUTING guide and consider opening a pull request.

License

This project is licensed under the MIT license.