Get node fields in Rules action programatically

Question

How to get node field values and include it the Rules Action? If I have a custom content type that has taxonomy terms, and I want to display these terms in Action. Example output is simply logging the terms.

• Event: content type is created
• Condition: of node type: custom_content
• Action: Log the taxonomy terms

Pseudo code:

 public function execute() {
    $term1 = field_taxonomy1_fromCustomContentType
    $term2 = field_taxonomy2_fromCustomContentType
    $this->setProvidedValue('concatenated', $term1 . $term2);
    \Drupal::logger('custom_rules')->notice("Rules Action");
  }

Answer 1

Just in case someone had the same approach as mine. Here is the solution from Drupal.org community.