Injectable

@tsed/di

Usage

import { Injectable } from "@tsed/di";

See /packages/di/src/common/decorators/injectable.ts.

Overview

function Injectable(options?: Partial<ProviderOpts>): ClassDecorator;

• options (Partial<ProviderOpts>): Optional. Provider configuration options

Description

Declare a class as an injectable provider in the DI system.

Registers a class as a provider that can be injected into other services, controllers, or interceptors. By default, providers are singleton-scoped and built once during application initialization.

Usage

import {Injectable} from "@tsed/di";

@Injectable()
export class MyService {
  getData() {
    return "data";
  }
}

// With options
@Injectable({
  scope: ProviderScope.REQUEST,
  type: ProviderType.PROVIDER
})
export class RequestScopedService {}

Options

• type: Provider category (default: ProviderType.PROVIDER)
• scope: Instance lifecycle scope (default: ProviderScope.SINGLETON)
• token: Custom injection token (overrides class reference)
• deps: Explicit constructor dependencies (overrides TypeScript metadata)