Setting a minimum quantity to a specific category in order to checkout

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hi there
i’ll start and say im not a web developer so i dont know how to code
i wanted to do 3 things to my website:

  1. set a minimum quantity to a specific item
  2. set maximum quantity to all of the items
  3. set a minimum quantity to a specific category
    all of the above has to grey out the proceed to checkout if requirement not met
    using ecom-validations in chat gpt i managed to do the first 2 and its working great.
    the only one i cant resolve is the min quantity to a category
    can please someone help me with the correct code?

the code im using now
import * as ecomValidations from ‘interfaces-ecommerce-v1-validations-provider’;

// Assuming that the schema or validation rule involves a “description” property with minLength and maxLength rules.
const schema = {
properties: {
description: {
type: ‘string’, // Explicitly set the type to ‘string’
minLength: 1, // Set the minimum length for the description property
maxLength: 255, // Set the maximum length for the description property
},
},
};

export const getValidationViolations = async (options, context) => {
let violations = ;
const source = options.sourceInfo.source;
const severity = source == ecomValidations.Source.CART ? ecomValidations.Severity.ERROR : ecomValidations.Severity.ERROR;

const desiredCategory = ‘6ed1fc23-7319-3fe7-ce6d-c10fc0294107’;

const itemDescription = “must order more than 2 pcs”;

// Check all line items
options.validationInfo.lineItems.forEach((lineItem) => {
const catalogCategory = lineItem.catalogReference?.category?.categoryId;

if (catalogCategory === desiredCategory) {
  const quantity = lineItem.quantity;
  if (quantity > 0 && quantity < 2) {
    violations.push({
      severity,
      target: { lineItem: { name: ecomValidations.NameInLineItem.LINE_ITEM_DEFAULT, _id: lineItem._id } },
      description: itemDescription
    });
  }
}

});

const cartQuantityDescription = “You must purchase a minimum of 2 items.”;
const cartQuantity = options.validationInfo.lineItems.reduce((partialSum, lineItem) => partialSum + lineItem.quantity, 0);

if (cartQuantity < 1) {
violations.push({
severity,
target: { other: { name: ecomValidations.NameInOther.OTHER_DEFAULT } },
description: cartQuantityDescription
});
}

return { violations };
};

i get this error:

“root”:{

“insertId”:

“…7Mp5BWfu47tQwDW0pt0lUl”

“timestamp”:

“2023-12-15T09:19:46.767Z”

“labels”:{

“siteUrl”:

“n/a”

“revision”:

“1844”

“namespace”:

“Velo”

“tenantId”:

“7b787ec8-275d-4966-81c7-e406e1512859”

“viewMode”:

“Site”

}

“operation”:{

“id”:

“1702631984.42610877729076715435”

“producer”:

“backend”

}

“jsonPayload”:{

“message”:

“[“strict mode: missing type "string" for keyword "minLength" at "#/properties/description" (strictTypes)”]”

}

“severity”:

“WARNING”

“receiveTimestamp”:

“2023-12-15T09:19:47.324Z”

}