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tripolskypetr/di-kit

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di-kit

Minimal ioc container which allow circular dependency injection

Installation

npm install di-kit

Code sample

import { inject, provide, init } from './index.mjs';

const TYPES = {
    serviceFoo: Symbol('serviceFoo'),
    serviceBar: Symbol('serviceBar'),
    serviceBaz: Symbol('serviceBaz'),
};

provide(
    TYPES.serviceFoo, 
    () => new class {
        bar = inject(TYPES.serviceBar);
    }
);

provide(
    TYPES.serviceBar,
    () => new class {
        foo = inject(TYPES.serviceFoo);
        baz = inject(TYPES.serviceBaz);
    }
);

provide(
    TYPES.serviceBaz,
    () => new class { }
);

const ioc = {
    serviceFoo: inject(TYPES.serviceFoo),
    serviceBar: inject(TYPES.serviceBar),
    serviceBaz: inject(TYPES.serviceBaz),
};

init();

console.log(ioc.serviceFoo.bar.name);
console.log(ioc.serviceBar.foo.name);
console.log(ioc.serviceBar.baz.name);

See also

If you looking for ASP.Net Core Scoped Services alternative for NodeJS take a look on di-scoped npm package

import { scoped } from 'di-scoped';

const TestClass = scoped(class {

    constructor(private name: string) {
    }

    test() {
        console.log(`Hello, ${this.name}`);
    }
});


TestClass.runInContext(() => {

    new TestClass().test(); // Hello, Peter

}, "Peter")

Releases

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Packages

 
 
 

Contributors

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