react-instantsearch/examples/autocomplete/src/App-Multi-Index.js

import React, { Component } from 'react';
import PropTypes from 'prop-types';
import Autosuggest from 'react-autosuggest';
import {
  InstantSearch,
  Configure,
  Index,
  Highlight,
  connectAutoComplete,
} from 'react-instantsearch-dom';
import algoliasearch from 'algoliasearch/lite';

const searchClient = algoliasearch(
  'latency',
  '6be0576ff61c053d5f9a3225e2a90f76'
);

const App = () => (
  <InstantSearch searchClient={searchClient} indexName="instant_search">
    <AutoComplete />
    <Configure hitsPerPage={1} />
    <Index indexName="bestbuy" />
    <Index indexName="airbnb" />
  </InstantSearch>
);

class Example extends Component {
  static propTypes = {
    hits: PropTypes.arrayOf(PropTypes.object).isRequired,
    currentRefinement: PropTypes.string.isRequired,
    refine: PropTypes.func.isRequired,
  };

  state = {
    value: this.props.currentRefinement,
  };

  onChange = (event, { newValue }) => {
    this.setState({
      value: newValue,
    });
  };

  onSuggestionsFetchRequested = ({ value }) => {
    this.props.refine(value);
  };

  onSuggestionsClearRequested = () => {
    this.props.refine();
  };

  getSuggestionValue(hit) {
    return hit.name;
  }

  renderSuggestion(hit) {
    return <Highlight attribute="name" hit={hit} tagName="mark" />;
  }

  renderSectionTitle(section) {
    return section.index;
  }

  getSectionSuggestions(section) {
    return section.hits;
  }

  render() {
    const { hits } = this.props;
    const { value } = this.state;

    const inputProps = {
      placeholder: 'Search for a product...',
      onChange: this.onChange,
      value,
    };

    return (
      <Autosuggest
        suggestions={hits}
        multiSection={true}
        onSuggestionsFetchRequested={this.onSuggestionsFetchRequested}
        onSuggestionsClearRequested={this.onSuggestionsClearRequested}
        getSuggestionValue={this.getSuggestionValue}
        renderSuggestion={this.renderSuggestion}
        inputProps={inputProps}
        renderSectionTitle={this.renderSectionTitle}
        getSectionSuggestions={this.getSectionSuggestions}
      />
    );
  }
}

const AutoComplete = connectAutoComplete(Example);

export default App;