Allow only specific values for key in Joi schema

Question

Is there any other way to set specific values in Joi validation schema for key except regex pattern?

My example schema:

const schema = joi.object().keys({
    query: joi.object().keys({
        // allow only apple and banana
        id: joi.string().regex(/^(apple|banana)$/).required(),
    }).required(),
})

Answer 1

You can also use valid like

const schema = joi.object().keys({
  query: joi.object().keys({
    // allow only apple and banana
    id: joi.string().valid('apple','banana').required(),
  }).required(),
})

Reference: https://github.com/hapijs/joi/blob/v13.1.2/API.md#anyvalidvalue---aliases-only-equal