fileserver/dto/responses/base.ts

import { IsNumber, Max, Min } from 'class-validator';

export class BaseResponse {
	constructor(statusCode: number) {
		this.statusCode = statusCode;
	}

	@IsNumber()
	@Min(100)
	@Max(599)
	statusCode: number;
}

export class SuccessResponse extends BaseResponse {
	constructor() {
		super(200);
	}

	declare statusCode: 200;
}

export class ErrorResponse extends BaseResponse {
	declare statusCode: 400 | 401 | 403;
	message?: string;
}