On drupal 8 every elements (almost) are an entity, as any entity you can render a node.

First, Create autocomplete controller and the route

Example of the controller : DefaultController.php

<?php

namespace Drupal\mymodule\Controller;

This is an example to merge 2 last commits.

1. git rebase -i HEAD~2

2. Change pick to squash the commit you want to merge

3. Save and Exit

4. git push -f origin master

Add meta tag from controller

Example: Add <meta http-equiv="refresh" content="30">
$data = [
  '#tag' => 'meta',
  '#attributes' => [


This is a simple example of a web service. For the example, We will make a service to multiply two numbers.

Create JSON WebService module

Create a module.

Here : mywebservice