Joi Validation || In an array of object, at least one object should contain a particular value of a key

user_14993796 0
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I need a schema for below array of object:

option = [
    {
        answer: '',
        isTrue: false
    },
    {
        answer: '',
        isTrue: true
    },
]

So far I wrote below schema:

Joi.array().items(Joi.object({
   answer: Joi.string().required(),
   isTrue: Joi.boolean().required()
}).unknown()).min(2).required()

Problem: I need to verify atleast one object should have "isTrue" key's value to be "true" (boolean)

joi validation schema javascript
1 Answers
 let optionsValidation = Joi.object().keys({
      answer: Joi.string().required(),
      isTrue: Joi.boolean().required()
    });
    
    //replace with your field name
    options: Joi.array()
          .items(optionsValidation)
          .has(
            Joi.object().keys({
              answer: Joi.string().required(),
              isTrue: Joi.boolean().invalid(false).required();
            }),
          )

Maybe you need to change smth to adapt it on your code but this should work. It makes sure that at least one object on array should have an answer and it should be true.

user_71375940
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