Injectable · Core API

Marks a class as an injectable provider for a token.

Dependencies are explicit and ordered by constructor parameter position. No reflect-metadata, parameter decorators, or global container are used.

Example

@Injectable({ token: USER_SERVICE, deps: [LOGGER] })
class UserService {
  private readonly logger: Logger;

  constructor(logger: Logger) {
    this.logger = logger;
  }
}

Param

options

Token, constructor dependencies, lifetime, and cleanup hook.

Call Signature

function Injectable<T, TDeps>(options): (target, context) => void;

Type Parameters

Type Parameter
T
TDeps extends readonly Dependency<unknown>[]

Parameters

Parameter	Type
options	InjectableOptions<T, TDeps> & object

Returns

(target, context) => void

Call Signature

function Injectable<T>(options): (target, context) => void;

Type Parameters

Type Parameter
T

Parameters

Parameter	Type
options	Omit<InjectableOptions<T, readonly []>, "deps">

Returns

(target, context) => void