https://github.com/midwayjs/injection

Injection is a powerful inversion of control container that is widely used in the midway framework and brings good user experience.
https://github.com/midwayjs/injection

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Injection is a powerful inversion of control container that is widely used in the midway framework and brings good user experience.

• Host: GitHub
• URL: https://github.com/midwayjs/injection
• Owner: midwayjs
• License: mit
• Created: 2019-01-21T06:12:05.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2021-12-28T16:29:32.000Z (almost 3 years ago)
• Last Synced: 2024-04-23T22:09:42.646Z (8 months ago)
• Language: TypeScript
• Homepage:
• Size: 2.57 MB
• Stars: 164
• Watchers: 26
• Forks: 20
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# Injection

[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/midwayjs/injection/blob/master/LICENSE)

[![GitHub tag](https://img.shields.io/github/tag/midwayjs/injection.svg)]()

[![Build Status](https://travis-ci.org/midwayjs/injection.svg?branch=master)](https://travis-ci.org/midwayjs/injection)

[![Test Coverage](https://img.shields.io/codecov/c/github/midwayjs/injection/master.svg)](https://codecov.io/gh/midwayjs/injection/branch/master)

[![Package Quality](http://npm.packagequality.com/shield/injection.svg)](http://packagequality.com/#?package=injection)

[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/midwayjs/midway/pulls)

Injection is a powerful inversion of control container that is widely used in the midway framework and brings good user experience. 

## Installation

```bash

$ npm install injection reflect-metadata --save

```

Node.js >= 10.0.0 required.

> Injection requires TypeScript >= 2.0 and the experimentalDecorators, emitDecoratorMetadata, types and lib compilation options in your tsconfig.json file.

```json

{

  "compilerOptions": {

    "target": "ES2018",

    "module": "commonjs",

    "moduleResolution": "node",

    "experimentalDecorators": true,

    "emitDecoratorMetadata": true,

    "inlineSourceMap":true,

    "noImplicitThis": true,

    "noUnusedLocals": true,

    "stripInternal": true,

    "pretty": true,

    "declaration": true,

    "outDir": "dist",

    "lib": ["ES2018", "dom"]

  }

}

```

## Getting Started

```ts

import {Container, provide, inject} from 'injection';

@provide('userModel')

class UserModel {

}

@provide('userService')

class UserService {

  

  @inject()

  private userModel;

  

  async getUser(uid) {

    // TODO

    return 'Alex';

  }

}

const container = new Container();

container.bind(UserService);

container.bind(UserModel);

async function getData() {

  const userService = await container.getAsync('userService'); 

  const data = await userService.getUser(123);

  return data;

}

getData().then(console.log);

// Alex

```

Document: [https://midwayjs.org/injection/guide.html](https://midwayjs.org/injection/guide.html)

## License

[MIT]((http://github.com/midwayjs/midway/blob/master/LICENSE))