schema

routes.ts

import { Router } from 'express';
import OrdersController from '../controllers/OrdersController';
import { celebrate, Segments, Joi } from 'celebrate';

const ordersRouter = Router();
const ordersController = new OrdersController();

ordersRouter.get('/:id?', ordersController.index);
ordersRouter.post(
  '/',
  celebrate({
    [Segments.BODY]: Joi.object().keys({
      products: Joi.array().items(
        Joi.object({
          name: Joi.string().error(new Error('Products must have a name')),
          quantity: Joi.number().error(
            new Error('Products must have a quantity'),
          ),
        }),
      ),
    }),
  }),
  ordersController.create,
);

export default ordersRouter;

server.ts

import 'reflect-metadata';
import 'dotenv/config';

import express, { Request, Response, NextFunction } from 'express';
import 'express-async-errors';

import routes from './routes';
import AppError from '@shared/errors/AppError';
import { errors } from 'celebrate';

import '@shared/infra/typeorm';
import '@shared/container';

const app = express();

app.use(express.json());
app.use(routes);

app.use(errors());

app.use((err: Error, request: Request, response: Response, _: NextFunction) => {
  if (err instanceof AppError) {
    const { statusCode, message } = err;

    return response.status(statusCode).json({
      status: 'error',
      message,
    });
  }

  console.error(err);

  return response.status(500).json({
    status: 'error',
    message: 'Internal server error',
  });
});

app.listen(3000, () => {
  console.log('🌴 starting again node server on port 3000...');
});