Facets | Yext Hitchhikers Platform

Background

The Facets component allows users to filter their search results using the facets returned by the Search API. Facets differ from static filter components in that they are returned by the server, instead of being defined by the client. This means that the server will decide which facets are relevant to a particular query and what their options should be, as well as how many of the results belong to each facet option.

For this reason, the facet component involves less configuration than other filter components. Like other filter components, facets can only be used on a VerticalSearch page. They can be added to an experience like this:

<div class="facets"></div>

ANSWERS.addComponent('Facets', {
  container: '.facets',
  verticalKey: 'VERTICAL_KEY',
});

Basic Configuration

There are a few common configuration options you may want to tweak for the facets component. Here is a standard example:

ANSWERS.addComponent('Facets', {
  container: '.facets',
  verticalKey: 'VERTICAL_KEY',
  searchOnChange: true,
  showCount: false,
  showMoreLimit: 2,
  showMoreLabel: 'More',
  showLessLabel: 'Less'
});

In this example…

showCount: false hides the number of results for each facet option
searchOnChange: true causes the search to automatically refresh as soon as the user selects a facet
showMoreLimit: 10 adds a “Show More” button to reveal more options when there are more than 10 facet options
showMoreLabel and showLessLabel control the labels of the resulting buttons

The resulting component looks something like this:

Some facet fields will have dozens or hundreds of options, so it doesn’t make sense to display them all to the user at once. A better way is to make the facet searchable, which allows the user to search for the particular option they’re looking for. Facets can be made searchable like so:

ANSWERS.addComponent('Facets', {
  container: '.facets',
  verticalKey: 'VERTICAL_KEY',
  searchable: true
});

The result looks like this:

Field-Specific Configuration

Often it doesn’t make sense to apply the same configuration to all facets in an experience. For example, some facet fields may have hundreds of options and should be made searchable, but others might not.

To apply configuration for particular facet fields, use the transformFacets option. The transformFacets option of the Facets component allows facets data to be fully customized. The function takes in and returns an array of the search-core displayable facet which is described here . The function also has access to the Facets config as the second parameter.

Here’s an example of using this option to customize a boolean facet and make it searchable.

transformFacets: (facets, config) => {
  console.log(config);
  return facets.map((facet) => {
    console.log(facet);
    const options = facet.options.map((option) => {
      let displayName = option.displayName;
      if (facet.fieldId === "c_acceptingNewPatients") {
        if (option.value === false) {
          displayName = "Not Accepting Patients";
        }
        if (option.value === true) {
          displayName = "Accepting Patients";
        }
      }
      return Object.assign({}, option, { displayName });
    });
    let searchable = false;
    if (facet.fieldId === "paymentOptions") {
      searchable = true;
    }
    return Object.assign({}, facet, { options, searchable });
  });
}

Property	Type	Default	Description
verticalKey	string		the vertical for which these facets apply. Required if not included in the top level search configuration .
title	string	Filters	Title to display above the facets
showCount	boolean		Whether to show the number of results for each facet option
searchOnChange	boolean		Whether to execute a new search whenever a facet selection changes
resetFacet	boolean		Show a reset button per facet group
resetFacetLabel	boolean	reset	If `resetFacet` is true, the label to use for the reset button per facet group
resetFacets	boolean		Show a reset-all button for the facets control. Defaults to true if searchOnChange is false.
resetFacetsLabel	string	reset-all	If `resetFacets` is true, the label to use to reset all.
showMore	boolean	true	Whether to allow collapsing of excess facet options after a limit
showMoreLimit	boolean	true	The max number of filter options to show before collapsing extras
showMoreLabel	string	show more	If `showMore` is true, the label for the button to display more facets
showLessLabel	string	show more	If `showMore` is true, the label for the button to display less facets
expand	boolean	true	Adds an expand/collapse per facet.
showNumberApplied	boolean	true	When facet is collapsed, show the number of facet options applied.
searchable	boolean		If true, make this facet searchable by displaying the filter option search input
placeholderText	string	Search here...	If `searchable` is true, the placeholder text used for the filter option search input
searchLabelText	string	Search for a filter option	The form label text for the search input
fields	object		DEPRECATED Field-specific overrides
searchable	boolean		If true, make this facet searchable by displaying the filter option search input
placeholderText	string		If `searchable` is true, the placeholder text used for the filter option search input
control	string	singleopiton	Control type, either singleoption or multiopton
transformFacets	function		Allows for custom transforms of facets as they return
applyLabel	string	apply	If `searchOnChange` is false, the label to show on the apply button

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Facets | Yext Hitchhikers Platform

Background

Basic Configuration

Searchable Facets

Field-Specific Configuration

Facets API