Node.js + Joi how to display a custom error messages?

Question

It seems pretty straight forward to validate user\'s input in Node.js RESTapi with Joi.

But the problem is that my app is not written in English. That m

Answer 1

Joi Version 14.0.0

const SchemaValidation = {
  coins: Joi.number()
    .required()
    .error(() => {
      return {
        message: 'Coins is required.',
      };
    }),
  challenge_name: Joi.string()
    .required()
    .error(() => {
      return {
        message: 'Challenge name is required.',
      };
    }),
  challengeType: Joi.string()
    .required()
    .error(() => {
      return {
        message: 'Challenge type is required.',
      };
    }),
  challengeDescription: Joi.string()
    .required()
    .error(() => {
      return {
        message: 'Challenge description is required.',
      };
    }),
};

In errors object you can get, error type and change message according.