What is the method to selectively disable validation for a certain key within an object in the Joi Schema?

I am currently implementing Joi for validating JSON schemas, and I am in need of removing validation for a specific key (id) within a basic object in the main schema.

Here is an example of the schema I am working with:

const schema = Joi.object({
  id: Joi.string().required(),
  operation: Joi.string().required(),
  // Other keys...
});

I have tried to create a new schema (newSchema) by utilizing the .keys() method to eliminate the validation for the id key, as shown here:


const newSchema = schema.concat(Joi.object({
  id: Joi.any().optional(), // Attempted approach
}));

Unfortunately, this method does not seem to produce the desired outcome.

My goal is to generate a new schema identical to the original but without the validation for the id key:

Is there a way to eliminate the validation for the id key within a basic object using Joi?

javascriptjoi

Answer №1

If you already have a clear understanding of the types you are dealing with, you have the option to utilize alternatives (refer to the documentation here)

For example, if you prefer to use either string or integer numbers as an id, you can achieve this by:

const schema = Joi.object({
 id: Joi.alternatives().try(Joi.number(), Joi.string()).required(),
 operation: Joi.string().required(),
  // Additional keys...
});

Answer №2

The overriding feature is effective when utilizing .keys

const updatedSchema = schema.keys({
  id: Joi.any().optional()
});

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