仅允许 Joi 模式中键的特定值

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

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 2

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 3

You can try with .valid() to allow joi only with that specific string .

const schema = joi.object().keys({
  query: joi.object().keys({
    role: joi.string().valid('admin','student').required(), // joi would allow only if role is admin or student.
  }).required(),
})

This is absolutely equal to giving "enam" field in mongoose ODM for representing objects in mongodb.