nano-di

A tiny tool to improve DX when writing (and more importantly testing) Object-Oriented typescript code.

✅ Tiny footprint, good practices baked in

• 🦥 Lazy instantiation automagically prevents unncessary instantiation of unused dependencies.
• 🐔 Once instantiated the dependency is remembered and reused for all subsequent calls

✅ Explicit dependency declaration without the work for it.

• ☢️ No need to fumble with decorators
• 🤡 No need to manually declare single-use interfaces
• 🤯 No need to bend your mind around injection Containers
• 🥳 No special notation for injectable classes. All classes are fair game.
• Runs anywhere JS runs, no need for ReflectMetadata support

☮️ Aiming for the testing Zen

• 🏋️ No need to fumble around to remember that are the dependencies of the class you're testing. Explicit dependencies mean typescript can now remember you
• 🌠 Developer-first architecture - Optional explicit dependency method declaration means you can now keep things under (some) control even in large codebases
• 😱 Lower the pain of having to manually stub and clean dependencies.

✅ Batteries included, easily replaceable

• Adapters for Jest and Mocha work out of the box. Integration your own is just a piece of cake.
• Easily disable nano-di when you need to run integration tests. No pain inflicted, guaranteed.