Algolia Connector WordPress plugin

Hooks up a connection from WordPress to Algolia.

Warning

Note that this plugin is in active development and may have missing features or bugs. It is intended primarily as a starting point for a WordPress to Algolia integration. Use with caution!

System Requirements

• PHP 8.2 or newer.
• WordPress version 6.6 or newer.
• Composer

Installation

1. Download this plugin and add it to the /wp-content/plugins/ directory of your WordPress environment.
2. Install PHP dependencies by running composer install in the plugin directory.

Usage

Once you have set up your Algolia application, retrieve your account credentials in the API Keys section of your Algolia account. This plugin provides a settings page that can be used to store these values, but it is recommended that you use environment variables (you can also save the values as constants). The following

Value	Variable name
Application ID	ALGOLIA_APPLICATION_ID
Search API key	ALGOLIA_SEARCH_API_KEY
Admin API key	ALGOLIA_ADMIN_API_KEY
Index name	ALGOLIA_INDEX_NAME

Configuring your theme

The plugin exposes a few hooks that allow you to customize what and how data gets sent to the Algolia index.

do_action( "algolia_indexable_post_types", array $post_types )

By default, no content types will be indexed. You can add which post types should be indexed by returning them from the algolia_indexable_post_types filter:

Parameters

• $post_types array

  The list of post types that can be indexed.

Example

add_filter( 'algolia_indexable_post_types', function( $post_types ) {
	$indexable_types = array( 'post', 'page', 'some_custom_type' );
	return array_merge( $post_types, $indexable_types );
} );

do_action( "algolia_{$post->post_type}_to_record", array $record )

You can customize the Algolia record with the algolia_{$post->post_type}_to_record hook, replacing the dynamic portion with the post type handle.

Parameters

• $record array

  The record object that will be saved to Algolia. By default, the record is saved with the following values:

  • distinct_key A unique identifier for the post object within Algolia.
  • post_id ID of the post.
  • title Title of the post.
  • post_type Type of the post.
  • url A URL for the post, retrieved with get_permalink().
  • book A default boost setting.
  • content Content. This is usually one of the searchable fields.

// Modify the record for all Page posts.
add_filter( 'algolia_page_to_record', function ( $record ) {
	// You can access the WP_Post object like this:
	$_post = get_post( $record['post_id'] );

	// Add other Page data, like post metadata, to the record.
	$record['date'] = get_post_meta( $record['post_id'], 'some_meta_key', true );

	return $record;
} );

WP CLI

This plugin comes with a few WP CLI commands that can be used to manage an index.

# Reindex everything.
wp algolia reindex

# Reindex just posts and pages.
wp algolia reindex --type=post,page

# Reindex a single post.
wp algolia reindex_single 123

# Delete all records in an index.
wp algolia clear

# Test the connection.
wp algolia test_connection