Joi

const registerSchema = Joi.object({
        name: Joi.string().min(3).max(30).required(),
        email: Joi.string().email().required(),
        password: Joi.string().min(5).required(),
        repeat_password: Joi.ref('password')
    })


    let { error } = registerSchema.validate(req.body)
    if (error) {
        return next(error)
    }
Rasel Hossain