Question

14

How to allow any other key in Joi

rated 0 times [ 16] [ 2] / answers: 1 / hits: 39908 / 6 Years ago, wed, april 18, 2018, 12:00:00

I have a simple requirement. I tried to search on the internet as well as documentation but failed.

So here is what I want to achieve:

I have a schema:

const schema = Joi.object().keys({

  a: Joi.string().required(),

  b: Joi.string().required()

});

Now, How do I configure it such that any other key in the object would be allowed?

With this schema, it only allows two keys a and b. If I pass any other key, say, c, it throws an error saying that c is not allowed.

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

kinsley

Add To Favorites

Follow

Total Points: 352

Total Questions: 84

Total Answers: 94

Location: Denmark

Member since Tue, Jul 19, 2022

2 Years ago

kinsley questions

1 Module not found: Can't resolve '@material-ui/lab/TabContext' in '/home/sanika/Desktop/Coding/React/my-forms/src/Components'

Sat, Aug 21, 21, 00:00, 3 Years ago

1 TypeError [ERR_HTTP_INVALID_HEADER_VALUE] for Algolia with Firebase

Mon, Jul 20, 20, 00:00, 4 Years ago

1 ReactJS: propTypes validation for array of objects

Mon, Nov 25, 19, 00:00, 5 Years ago

1 styled-components: extend styles and change element type

Sat, Apr 20, 19, 00:00, 5 Years ago

1 Changing the display of an element via Javascript?

Wed, Feb 20, 19, 00:00, 5 Years ago

View All

answered 6 Years ago calicinthias · Accepted Answer

You can add unknown keys using object.pattern(regex, schema) this way IF you want to make sure these unknown keys are strings:

const schema = Joi.object().keys({

  a: Joi.string().required(),

  b: Joi.string().required()

}).pattern(/./, Joi.string());

For a general pass of all key types use object.unknown(true):

const schema = Joi.object().keys({

  a: Joi.string().required(),

  b: Joi.string().required()

}).unknown(true);