Facet normalizer

Concept of facets exists in both Unified Data Layer world and Commercetools. The normalizeFacet function maps Commercetools FacetResultValue into Unified SfFacet.

Parametersri:link

Name	Type	Default value	Description
`facetResultValue`	`FacetResultValue`		Commercetools Facet
`ctx`	`NormalizeFacetContext`		Context which contains `getFacetType`

Extendingri:link

The SfFacet is returned from SearchProducts Method. If the SfFacet structure doesn't contain the information you need for your Storefront, you can extend its logic using the defineNormalizers function.

Sourceri:link

facet.ts

import { FacetResultValue } from "@vsf-enterprise/commercetools-types";
import { GetFacetTypeFn, SfFacetTypes } from "@vue-storefront/unified-data-model";
import { defineNormalizer } from "../defineNormalizer";

const defaultGetFacetType: GetFacetTypeFn<FacetResultValue> = () => SfFacetTypes.MULTI_SELECT;

export const normalizeFacet = defineNormalizer.normalizeFacet((facetResultValue, ctx) => {
  const { facet, value } = facetResultValue;
  const { getFacetType = defaultGetFacetType } = ctx;

  const sfFacetItems =
    value.terms?.map((term) => ({
      label: term.term,
      value: term.term,
      productCount: term.productCount,
    })) || [];

  if (sfFacetItems.length === 0) {
    return null;
  }

  return {
    label: facet,
    name: facet,
    values: sfFacetItems,
    type: getFacetType(facetResultValue),
  };
});