This Drupal 10 module provides a simple implementation of a custom datasource for Drupal Search API. Our custom datasource plugin consumes data from custom tables inside the drupal database so that they can be indexed by the corresponding Search API index on any supported server (database, solr, etc).
NOTE: You have to update the table definitions with your own in CustomEntity::getPropertyDefinitions() and CustomDataType::getPropertyDefinitions().
After you install the module, you have to select the Custom Tables Datasource in Search API -> Your index -> Datasources
After some data is updated, you can call the tracking manager service to update the index, like this:
$tracking_manager = \Drupal::getContainer()->get('search_api.custom_tables_datasource.tracking_manager');
$tracking_manager->dataUpdate($updated_data);@see https://www.drupal.org/docs/8/modules/search-api/getting-started/adding-an-index