API Reference / Angular InstantSearch Widgets / ais-index
Widget signature
<ais-index
  indexName="string"
  // Optional parameters
  indexId="string"
></ais-index>

About this widget

This widget lets you apply widgets to a specific index. This is useful when you want to build an interface that targets multiple indices.

You can learn more about this pattern, called “Federated Search”, in the guides on multi-index search.

The position of index in the widgets tree impacts which search parameters apply. Widgets that create search parameters forward them to their child index widgets.

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<ais-instant-search>
  <ais-search-box></ais-search-box>
  <ais-hits></ais-hits>
  <ais-index indexName="media">
    <!-- The index inherits from the parent's `searchBox` search parameters -->
    <ais-hits></ais-hits>
  </ais-index>
</ais-instant-search>

The only exception to this rule is when two widgets own the same part of your UI state, like two ais-search-box widgets or two ais-refinement-list widgets on the same attribute. In that case, the latter takes precedence and overrides the search parameters.

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<ais-instant-search>
  <ais-search-box></ais-search-box>
  <ais-hits></ais-hits>
  <ais-index indexName="media">
    <!-- The index does not inherit from the parent's `searchBox` search parameters -->
    <ais-search-box></ais-search-box>
    <ais-hits></ais-hits>
  </ais-index>
</ais-instant-search>

The same rule applies when you nest multiple index widgets.

Examples

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<ais-index indexName="instant_search">
  <!-- Add widgets -->
</ais-index>

Options

indexName
type: string
Required

The index to search into.

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<ais-index indexName="instant_search"></ais-index>
indexId
type: string
default: value provided for indexName
Optional

An identifier for the index widget. Providing an indexId allows different index widgets to target the same Algolia index. It’s especially useful for the routing feature, and lets you find the refinements that match an index widget.

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<ais-index
  // ...
  indexId="instant_search_one"
></ais-index>

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