JetFormBuilder. Example of custom hook with API request and redirect.

form-custom-hook.php

<?php
/**
 * 'api-request' - is a customm hook name
 */
add_action( 'jet-form-builder/custom-action/api-request', function( $request, $action_handler ) {
	
	$post_id = ! empty( $request['inserted_post_id'] ) ? $request['inserted_post_id'] : false;

	if ( ! $post_id ) {
		return;
	}

	$response = wp_remote_get( 'https://fakerapi.it/api/v1/companies?_quantity=1' );
	$body = wp_remote_retrieve_body( $response );
	$body = json_decode( $body, true );

	if ( $body ) {
		$data = $body['data'][0];
		update_post_meta( $post_id, 'api-response', $data['name'] );
	}

	$redirect = get_permalink( $post_id );

	if ( ! $request['__is_ajax'] ) {
		wp_safe_redirect( $redirect );
		die();
	} else {
		$action_handler->response_data['redirect'] = $redirect;
	}

}, 10, 2 );

Good to know:

• $request is a multi dimensional array that consists of array keys that correspond with the IDs of the inputs in your form.
• If you need the ID of the CCT that will be created, you need to look for the key "inserted_cct_" + slug of your CCT. So if your CCT is called "record_information", then the name of the key in the $request will be "inserted_cct_record_information".
• your form needs to include an action to call a custom hook; the name of the hook needs to correspond with the last part of the action hook you defined. So if we're following the example above, you will need to enter the value "api-request" in the custom hook settings for your JetFormBuilder.

I love these plugins, I hate their documentation. Hope this helps. ;-)