Is there any way to ignore some fields during joi schema validation

Question

I am using joi for schema validation. I have created a joi schema object for create operation and everything is working fine. In case of update, I will not get all the fields request body. For that case, I have to write another schema. Is there any way to handle the both create and update with the single schema?

Answer 1

I usually use presence option during schema validation like

const Joi = require('joi');

function validateUser(data, presence) {
    const schema = Joi.object({
        name: Joi.string().max(50),
        email: Joi.string().email(),
        password: Joi.string().min(6).max(30),
    });
    // use presence option during validation
    schema.validate(data, { presence });
}

// in create
validateUser(data, 'required');

// in update
validateUser(data, 'optional');

If required you may use presence() function during schema defining