Scope

@tsed/di

Usage

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

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

Overview

function Scope(scope?: "request" | "singleton" | ProviderScope): Function;

• scope ("request" | "singleton" | ProviderScope): Optional. The provider scope to set (default: REQUEST)

Description

Define the lifecycle scope of a provider.

Controls when and how provider instances are created and shared. Can be combined with @Injectable(), @Service(), or other provider decorators.

Scopes

• SINGLETON: One instance shared across the application (default)
• REQUEST: New instance per request/context
• INSTANCE: New instance on every injection

Usage

import {Injectable, Scope, ProviderScope} from "@tsed/di";

@Injectable()
@Scope(ProviderScope.REQUEST)
export class RequestScopedService {
  // New instance created for each request
}

@Injectable()
@Scope("singleton")
export class SingletonService {
  // Same instance shared across the app
}