Are there any good dependency injection libraries available/compatible with bun?

[jdgriffith]

I'm coming from nestjs and am comfortable with their dependency injection (DI) or inversion of control, which works incredibly well. I have decent sized codebases with different modules and would like to keep some of the same structure if I port the code to the bun runtime. Are there any options for someone like me?

P.S. I don't need http capability atm, only need DI.

[iamyuu]

I try using typedi and it work, but you need to use Container.get

example code

import 'reflect-metadata';
import { Service, Container } from 'typedi';

@Service()
class AppRepository {
	foo = () => {
		console.log('bar');
	};
}

@Service()
class AppService {
	baz = () => {
		Container.get(AppRepository).foo();
	};
}

new AppService().baz();

[algoflows]

Any more examples?

[struckchure]

Currently trying this in Elysia and it doesn't work, but using it as stated in that example w/o elysia, works fine

Ideas?

[aquapi]

Why do you need these patterns in Elysia?
It's not designed to be used like that.

[struckchure]

I want to use di for my app services outside elysia, so I can do proper unit testing

or is there a way to inject dependencies like db connections to respository/services without props drilling from the controller (elysia)?

[aquapi]

You know many can do proper testing without using OOP patterns right?
You can inject using something like .decorate I think

[struckchure]

You're right, but i'm used to having DI, coming from NestJs.

[nad-au]

I spent nearly two years building APIs with Nest, and I was happy with result coming from OOP with .NET. However, since using Bun & Elysia, I'm beginning to accept more functional-style programming. And indeed with plugins and decorate, you can achieve similar to DI.