clean-node-1-excerpt-6.js

const productSchema = Joi.object().keys({
  name: Joi.required(),
  price: Joi.required(),
  weight: Joi.required()
});

// …

app.post("/products", async (req, res) => {
  const { error } = Joi.validate(req.body, productSchema, { abortEarly: false });
  if (error) {
    const errorMessage = error.details.map(({ message, context }) => { message, context });
    return res.status(400).send({ data: errorMessage });
  }
});