Abdul Muqsit moxet

If you enable Register update REST API Endpoint switcher in Relation settings https://prnt.sc/5uVcmW01T7sk
then you can update relation items and / or meta

Endpoint URL is https://your-site.com/wp-json/jet-rel/RELATION_ID
Method - POST

Relation ID can be found in Relation URL when editing it

Authenticate with Application Password

Get/Create/Update/Delete CCT item

Check if CCT module active

$module_active = jet_engine()->modules->is_module_active( 'custom-content-types' );

Get type object and handler

$type_object is an instance of \jet-engine\includes\modules\custom-content-types\inc\factory.php \

Methods

All these are to be called on 'init' action with the priority of 12 or later
Before init 12 there are no relations registered

Get relation object

This is to get Relation object by its ID (https://prnt.sc/zCOroTie86bL)
(object of this class \jet-engine\includes\components\relations\relation.php)

	<?php

	/**
	* JetFormBuilder has no documentation about what hooks they fire or when they fire them.
	*
	* I ended up digging into their source code to try and find an action that fires for all
	* form submission, even if they don't have a custom "post submit action" set up.
	*
	* Using jet-form-builder/form-handler/after-send gets the job done.
	*/

	// make your Checkbox filter, and ensure that "Group terms by parents" option is checkhed.
	// In the Checkbox filter widget enable the Dropdown additions. You can use the search option also. (Mixed filter type not tested)
	// Paste this code in a specific js file, plugin, or use the Elementor custom code function. (if elementor custom code, dont forget to
	// use the tags, like <script> and <style>
	// Multi level not tested, only one level.

	// Warning this script will affect all of your checkbox filter, where you settinged up the "Group terms by parents" option.

	// PREVIEW : https://prnt.sc/5fPJ6iebdDCy

	<?php
	/**
	* Add this code without opening PHP tag into funcitons.php og your active theme or with any code snippets plugin
	*/
	add_action(
	'rest_api_init',
	function() {

	/**
	* Here you can set taxonomies slugs you wnat to add to Rest API response

	<?php
	/**
	* Add this code without opening PHP tag into funcitons.php og your active theme or with any code snippets plugin
	*/
	add_action(
	'rest_api_init',
	function() {

	// Here you can specify post types slug where this field should be supported
	$supported_post_types = array(

	<?php

	/**
	* JetEngine CCT-related API functions to use in theme or plugin
	*
	* Theme usage - include get_theme_file_path( 'jet-engine-cct-api.php' );
	* Plugin usage - include PLUGIN_PATH . 'path-to-file-inside-plugin/jet-engine-cct-api.php';
	*/

	/**

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>MediaCapture and Streams API</title>
	<meta name="viewport" content="width=device-width">
	<link rel="stylesheet" href="main.css">
	</head>
	<body>
	<header>