Skip to main content
Signature
import {
  createInsightsMiddleware
} from "instantsearch.js/es/middlewares";

createInsightsMiddleware({
  insightsClient: null | InsightsClient,
  insightsInitParams?: object,
  onEvent?: (event: InsightsEvent, aa: null | InsightsClient) => void,
});

​
About this widget

Starting from v4.9.0, you can use the insights option instead of setting up the Insights middleware yourself.
The createInsightsMiddleware creates an insights middleware to help you achieve the following:
  1. Set the userToken for insights purposes (Click Analytics, Personalization, etc.)
  2. Automatically send events from built-in widgets. You can turn this off if needed
  3. Send events from your own custom widgets

​
Requirements

See also: Send click and conversion events with Vue InstantSearch

​
Examples

JavaScript
import { createInsightsMiddleware } from "instantsearch.js/es/middlewares";

createInsightsMiddleware({
  insightsClient,
  insightsInitParams,
  onEvent,
});

​
Options

​
insightsClient
InsightsClient | null
The Insights client is used to send events. It synchronizes the user token between search and analytics calls.To disable userToken synchronization and automatic event sending, set this to null.
<!-- In your HTML -->
<script>
  /*
    A snippet to include `search-insights`
    You can find it here
    https://github.com/algolia/search-insights.js
  */
</script>

<!-- In your .vue file -->
<template>
  <ais-instant-search
    :index-name="<index-name>"
    :search-client="searchClient"
    :middlewares="middlewares"
  >
    <!-- widgets -->
  </ais-instant-search>
</template>

<script>
  const insightsMiddleware = instantsearch.middlewares.createInsightsMiddleware({
    insightsClient: window.aa,
  });

  export default {
    data() {
      return {
        // ...
        middlewares: [insightsMiddleware]
      }
    },
    created() {
      const userToken = // Get the user token (synchronously or asynchronously).

      // The `insights` middleware receives a notification
      // and attaches the `userToken` to search calls onwards.
      window.aa('setUserToken', userToken);
    }
  }
</script>
​
insightsInitParams
object
Insights parameters to forward to the Insights client’s init method.With search-insights >= v1.7.0 and < 2.0.0, the Insights client accepts useCookie and userToken parameters in the init method. You can pass useCookie: false to prevent the usage of cookies to store an anonymous userToken. You can also pass a custom userToken while creating insights middleware, if you have one.With search-insights >= 2.0.0, the default value of useCookie is false.
You can set an authenticated user token and a user token in insightsInitParams. Both tokens are passed to the Insights API for sending events. If both are set, InstantSearch uses the authenticated user token for search queries.
createInsightsMiddleware({
  insightsInitParams: {
    useCookie: true,
  },
});
​
onEvent
(event: InsightsEvent, aa: null | InsightsClient) => void
default:"undefined"
By default, the middleware sends events to Algolia using the provided insightsClient. You can also control events and send them yourself by implementing an onEvent method for the middleware to call instead. This method lets you access data and filter or modify the payload. You can also use it to send events to third-party trackers.If you want to use onEvent to send events to third-party trackers, but don’t want to send them to Algolia, you can set insightsClient to null, and you don’t need the search-insights library in your application.
JavaScript
createInsightsMiddleware({
  insightsClient: window.aa,
  onEvent: (event, aa) => {
    const { insightsMethod, payload, widgetType, eventType } = event;

    // Send the event to Algolia
    if (insightsMethod) {
      aa(insightsMethod, payload);
    }

    // Send the event to a third-party tracker
    if (widgetType === "ais.hits" && eventType === "click") {
      thirdPartyTracker.send("Product Clicked", payload);
    }
  },
});

​
Custom events

​
Connectors
Many of the InstantSearch connectors expose the sendEvent method. If you use these connectors to create custom widgets, you can leverage the method to send custom events.Here’s a list of connectors that expose sendEvent and they’re exposed at the default slot of corresponding Vue InstantSearch components.
Vue
<ais-hits>
  <template v-slot="{ items, sendEvent }">
    <ul>
      <li v-for="item in items" :key="item.objectID">
        <p>{{ item.name }}</p>
        <button
          type="button"
          @click="sendEvent('click', item, 'Item Starred')"
        >
          Star
        </button>

        <button
          type="button"
          @click="sendEvent('conversion', item, 'Item Ordered')"
        >
          Order
        </button>
      </li>
    </ul>
  </template>
</ais-hits>