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Simple IoC

A simple inversion of control (IoC) library. This is a lightweight annotation-based dependency injection container for typescript.

Installation

You can install this package using NPM:

npm i @dmytropaduchak/simple-ioc --save

How use

Example with class injection:

import { Registry, registry, inject } from '@dmytropaduchak/simple-ioc';

class B {}

class A {
  @inject() private readonly b: B;
}

@registry([A, B])
class App {
  @inject() private readonly a: A;
  @inject() private readonly registry: Registry;
}

Example with raw object injection:

import { Registry, registry, inject } from '@dmytropaduchak/simple-ioc';

const name = 'env';
const value = process.env;

@registry([{ name, value }])
class App {
  @inject() private readonly env
}

Example with custom name injection:

class B {}

class A {}

@registry([A])
class App {
  @inject('a') private readonly b: A;
  @inject('b') private readonly a: B;
}

Example with factory injection:

import { Registry, registry, inject } from '@dmytropaduchak/simple-ioc';

interface Options {
  ...
}

class A {
  constructor(options: Options) {
    console.log(options)
  }
}

const inject = A;
const useFactory = (): Options => { ... }

@registry([{ inject, useFactory }])
class App {
  @inject() private readonly a
}

Unit testing

For run unit tests, use:

npm run test

All unit test report you can find at report/ folder.

For run test at watch mode, use:

npm run test:dev

Linting

For check eslint rules, use:

npm run lint

For auto fix all eslint bugs, use:

npm run lint:fix

License

Nest is MIT licensed.