BP_REST_Activity_Endpoint::get_activity_object( WP_REST_Request $request )

	public function get_activity_object( $request ) {
		$activity_id = is_numeric( $request ) ? $request : (int) $request['id'];

		$activity = bp_activity_get_specific(
			array(
				'activity_ids'     => array( $activity_id ),
				'display_comments' => true,
			)
		);

		if ( is_array( $activity ) && ! empty( $activity['activities'][0] ) ) {
			return $activity['activities'][0];
		}

		return '';
	}