How can I implement async validation with Joi?

How can I implement async validation with Joi?

You can use Joi's validateAsync method to perform asynchronous validation. Would you like a code example?

Yes, please provide a code example.

Here's a simple example:

const Joi = require('joi');

const schema = Joi.object({
  email: Joi.string().email().required()
});

async function validateEmail(email) {
  try {
    await schema.validateAsync({ email });
    console.log('Email is valid!');
  } catch (err) {
    console.error('Validation error:', err.details[0].message);
  }
}

validateEmail('[email protected]');

What happens if the validation fails?

If the validation fails, it will throw an error that you can catch in your try-catch block. The error will contain details about what went wrong.