export function Logger() {
return function (object: Object, propertyName: string, index?: number) {
const logger = new ConsoleLogger();
Container.registerHandler({ object, propertyName, index, value: containerInstance => logger });
export interface LoggerInterface {
log(message: string): void;
import { LoggerInterface } from './LoggerInterface';
export class ConsoleLogger implements LoggerInterface {
export class UserRepository {
constructor(@Logger() private logger: LoggerInterface) {}
this.logger.log(`user ${user.firstName} ${user.secondName} has been saved.`);