Joi - make everything required by default?

Question

I'm building out a Node/Express API and using Joi for validation. It's a great package and has been incredibly useful. However, we're getting tired of doing things like:

const mySchema = joi.object({
    thing1: joi.string().required(),
    thing2: joi.string().required(),
    thing3: joi.string().required(),
    thing4: joi.string().required(),
    thing5: joi.string().required(),
}).required();

We'd like everything to be required by default, and manually call .optional to override that. In fact this seems a sensible default - but leaving that aside for now.

Is there a way to achieve this?

Answer 1

You can use presence option to make fields required by default. Example:

const mySchema = joi.object({
    thing1: joi.string(),
    thing2: joi.string(),
    thing3: joi.string(),
    thing4: joi.string(),
    thing5: joi.string(),
}).options({ presence: 'required' }).required();