Edit file File name : mailerlite-handler.php Content :<?php namespace ElementorPro\Modules\Forms\Classes; if ( ! defined( 'ABSPATH' ) ) { exit; // Exit if accessed directly. } class Mailerlite_Handler { /** * @var Rest_Client */ private $rest_client = null; private $api_key = ''; /** * Mailerlite_Handler constructor. * * @param $api_key * * @throws \Exception */ public function __construct( $api_key ) { if ( empty( $api_key ) ) { throw new \Exception( 'Invalid API key.' ); } $this->init_rest_client( $api_key ); if ( ! $this->is_valid_api_key() ) { throw new \Exception( 'Invalid API key.' ); } } private function init_rest_client( $api_key ) { $this->api_key = $api_key; $this->rest_client = new Rest_Client( 'https://api.mailerlite.com/api/v2/' ); $this->rest_client->add_headers( [ 'X-MailerLite-ApiKey' => $api_key, 'Content-Type' => 'application/json', ] ); } /** * validate api key * * @return bool * @throws \Exception */ private function is_valid_api_key() { $groups = $this->rest_client->get( 'groups' ); if ( ! empty( $groups ) ) { return true; } $this->api_key = ''; return false; } /** * get MailerLite groups associated with API key * @return array * @throws \Exception */ public function get_groups() { $results = $this->rest_client->get( 'groups' ); $groups = [ '' => esc_html__( 'Select...', 'elementor-pro' ), ]; if ( 200 === $results['code'] ) { foreach ( $results['body'] as $index => $group ) { $groups[ $group['id'] ] = $group['name']; } } $return_array = [ 'groups' => $groups, 'fields' => $this->get_fields(), ]; return $return_array; } /** * get MailerLite fields associated with API key * @return array * @throws \Exception */ public function get_fields() { $results = $this->rest_client->get( 'fields' ); $fields = []; if ( ! empty( $results['body'] ) ) { foreach ( $results['body'] as $index => $field ) { if ( ! is_array( $field ) || empty( $field['date_updated'] ) ) { continue; } $fields[] = [ 'remote_label' => $field['title'], 'remote_type' => strtolower( $field['type'] ), 'remote_id' => $field['key'], 'remote_required' => false, ]; } } return $fields; } /** * create subscriber at drip via api * * @param string $group * @param array $subscriber_data * * @return array|mixed * @throws \Exception */ public function create_subscriber( $group = '', $subscriber_data = [] ) { $end_point = sprintf( 'groups/%s/subscribers', $group ); return $this->rest_client->post( $end_point, $subscriber_data ); } } Save