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inversify-token

5.1.0 • Public • Published

inversify-token

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Source: https://github.com/mscharley/inversify-token
Author: Matthew Scharley
Contributors: See contributors on GitHub
Bugs/Support: Github Issues
Copyright: 2018
License: MIT license
Status: Active

Synopsis

This library provides simpler, more type-safe options for injecting values using Inversify.

Installation

$ npm i inversify-token

Usage

Modified from the InversifyJS readme.

// Declare your interfaces as normal.
 
// file types.ts
import { Token, TokenType } from "inversify-token";
import { Warrior, Weapon, ThrowableWeapon } from "./interfaces"
 
const WarriorToken = new Token<Warrior>(Symbol.for("Warrior"));
type WarriorToken = TokenType<typeof WarriorToken>;
const WeaponToken = new Token<Weapon>(Symbol.for("Weapon"));
type WeaponToken = TokenType<typeof WeaponToken>;
const ThrowableWeaponToken = new Token<ThrowableWeapon>(Symbol.for("ThrowableWeapon"));
type ThrowableWeaponToken = TokenType<typeof ThrowableWeaponToken>;
 
export {
    WarriorToken as Warrior,
    WeaponToken as Weapon,
    ThrowableWeaponToken as ThrowableWeapon,
}
 
// file entities.ts
import { injectable } from "inversify";
import { injectToken } from "inversify-token";
import * as TYPES from "./types";
 
@injectable()
class Ninja implements Warrior {
 
    public constructor(
        @injectToken(TYPES.Weapon) private _katana: TYPES.Weapon,
        @injectToken(TYPES.ThrowableWeapon) private _shuriken: TYPES.ThrowableWeapon,
    ) { }
 
    public fight() { return this._katana.hit(); }
    public sneak() { return this._shuriken.throw(); }
 
}
 
// file inversify.config.ts
import { getToken, tokenBinder } from "inversify-token";
 
const myContainer = new Container();
const bindToken = tokenBinder(myContainer.bind.bind(myContainer));
bindToken(TYPES.Warrior).to(Ninja);
bindToken(TYPES.Weapon).to(Katana);
bindToken(TYPES.ThrowableWeapon).to(Shuriken);
const warrior = getToken(container, TYPES.Warrior);
 
// file inversify.module.ts
import { getToken, TokenContainerModule } from "inversify-token";
 
const myContainer = new Container();
const module = new TokenContainerModule((bindToken) => {
    bindToken(TYPES.Warrior).to(Ninja);
    bindToken(TYPES.Weapon).to(Katana);
    bindToken(TYPES.ThrowableWeapon).to(Shuriken);
});
myContainer.load(module);
const warrior = getToken(container, TYPES.Warrior);

Keywords

none

Install

npm i inversify-token

DownloadsWeekly Downloads

4,028

Version

5.1.0

License

MIT

Unpacked Size

19.4 kB

Total Files

7

Last publish

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