Joi Schema should contain one field or another

Question

I'm looking into using Joi for api validation.

I can't seem to confirm whether my schema is correct in that I want either the email or mobile to be required (but they both can't be empty/non existent) - is the below correct?

var schemaForRegistration = Joi.object().keys({
      email: Joi.string().email(),
      mobile:Joi.number().integer()
}).without('email', 'mobile');

Thanks

Answer 1

It might be that or() is what you're after.

Try this:

const Joi = require('joi')

const schema = Joi.object().keys({
    email: Joi.string().email(),
    mobile: Joi.number().integer()
}).or('email', 'mobile')

Joi.validate({ email: '[email protected]', mobile: '999000999000' }, schema, console.log)
Joi.validate({ mobile: '999000999000' }, schema, console.log)
Joi.validate({ email: '[email protected]' }, schema, console.log)
Joi.validate({}, schema, console.log)

The final validation will fail because neither email nor mobile is present.