Having trouble getting the `transformItems` feature in React InstantSearch RefinementList to

I recently integrated the React InstantSearch library into my app and I'm working on customizing the refinement list to display only relevant filters for the active user. I attempted the following code:

<RefinementList attributeName="organization" transformItems={items => items.filter(e => refineList.indexOf(e) >= 0)} />

Here, refineList is a basic array of strings (e.g., ["A", "B", "C"])

Despite applying the "transformItems" function, the RefinementList continues to show all filter options. Could it be that I misunderstood how "transformItems" functions?

The documentation on this subject is lacking, so I believe it would be beneficial for other users of the library as well.

javascriptreactjsalgoliareact-instantsearch

Answer №1

The modifyItems function accepts a single argument: data. It is designed to return the modified data set once processed.

data represents an array of objects structured as follows:

{
  name: string,
  options: array<string>,
  quantity: number,
  isSelected: bool,
}

If you wish to eliminate certain selections from the list based on an array of strings, you can use the following approach:

const excludeOptions = ['X', 'Y'];
<SelectionList
    sectionName="categories"
    modifyItems={data => data.filter(item => 
        excludeOptions.indexOf(item.name) < 0)}
/>

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