BooleanFacet does not work with Elasticsearch connector

[JasonStoltz]

Describe the bug See discussion here. https://discuss.elastic.co/t/search-ui-issues-with-elastic-search-connector-and-boolean-aggregations/312183/2

The BooleanFacet component does not work correctly with the Elasticsearch connector, because it's use of 0/1 values instead of true/false.

[botelastic[bot]]

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[MarttiR]

Here is a workaround for the APIConnector example from Search UI Next.js integration docs.

  async onSearch(requestState, queryConfig) {
    const response = await fetch("/api/search", {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify({
        requestState,
        queryConfig,
      }),
    });
    const { facets, ...rest } = await response.json();

    /**
     * Alter incoming facet data as a workaround for @elastic/search-ui issue.
     * See https://github.com/elastic/search-ui/issues/851
     */
    const alteredFacets = {
      ...facets,
      ...Object.fromEntries(
        Object.entries(facets)
          // Only process facets starting with "is".
          // Change this to suit the boolean field naming in your index!
          .filter(([facetName]) => facetName.startsWith("is"))
          .map(([facetName, facetValues]) => [
            facetName,
            facetValues?.map((facetValue) => ({
              ...facetValue,
              data:
                facetValue.data?.map((item) => {
                  // Map 0, 1 values to "false" and "true" strings.
                  if (item.value === 0) return { ...item, value: "false" };
                  if (item.value === 1) return { ...item, value: "true" };
                  return item;
                }) ?? [],
            })) ?? [],
          ])
      ),
    };

    return {
      ...rest,
      facets: alteredFacets,
    };
  }

[gaving]

@MarttiR Thanks for posting this workaround, spent a while trying to get to the bottom why my boolean facets weren't working!

Hoping the workaround can be removed in a future release.