import { ApplicationContext, BeanConfig, returnAutowired } from "inversify-typesafe-spring-like";

interface Article {
  id: number;
  title: string;
  content: string;
}

interface ArticleOutgoingPort {
  getById(id: number): Promise<Article>
}

class ArticleRepository implements ArticleOutgoingPort {
  getById(id: number): Promise<Article> {
    return Promise.resolve({
      id: id,
      title: `title #${id}`,
      content: `content #${id}`,
    })
  }
}

interface GetArticleUseCase {
  execute(id: number): Promise<Article>
}

const { Autowired } = returnAutowired<Beans>();

class ArticleQueryService implements GetArticleUseCase {
  constructor(
    @Autowired("ArticleOutgoingPort") // compile error if a parameter of @Autowired is not a key of Beans.
    private readonly articleOutgoingPort: ArticleOutgoingPort,
  ) { }
  execute(id: number): Promise<Article> {
    return this.articleOutgoingPort.getById(id);
  }
}

type Beans = {
  GetArticleUseCase: GetArticleUseCase; // interface (class is also possible)
  ArticleOutgoingPort: ArticleOutgoingPort; // interface (class is also possible)
}

const beanConfig: BeanConfig<Beans> = {
  // compile error if ArticleQueryService is not compatible with GetArticleUseCase.
  GetArticleUseCase: (bind) => bind().to(ArticleQueryService),
  // compile error if ArticleRepository is not compatible with ArticleOutgoingPort.
  ArticleOutgoingPort: (bind) => bind().to(ArticleRepository), 
}

const applicationContext = ApplicationContext(beanConfig);

const getArticleUseCase = applicationContext.get("GetArticleUseCase")

getArticleUseCase.execute(1).then(console.log)

Introduction

This library extends inversify-typesafe to provide a development experience similar to Spring Framework.

It sets the default container scope to Singleton and exports standard inversify-typesafe utilities with Spring-like naming conventions, making it easier for developers familiar with Spring to adopt Inversify in TypeScript projects.

Installation

Via npm

npm install inversify-typesafe-spring-like

Via yarn

yarn add inversify-typesafe-spring-like

Via pnpm

pnpm add inversify-typesafe-spring-like

Demo

Try it out on StackBlitz.

Types

https://inversify-typesafe-spring-like.myeongjae.kim/modules.html

Usage

The API is designed to mirror Spring's terminology:

1. createTypesafeContext() $\rightarrow$ ApplicationContext()
   • Note: defaultScope is set to Singleton by default.
2. returnTypesafeInject() $\rightarrow$ returnAutowired()
3. TypesafeServiceConfig<T> $\rightarrow$ BeanConfig<T>

For complete usage documentation and advanced features, please refer to the inversify-typesafe documentation.

License

MIT © Myeongjae Kim