[v8] Allow for authentication with api key

README.md

@@ -304,6 +304,7 @@ Hosts should be comma seperated string of hosts with protocol prefix and port su
  ELASTICSEARCH_USERNAME=admin
  ELASTICSEARCH_PASSWORD=admin
  ELASTICSEARCH_SSL_VERIFICATION=true,
+ ELASTICSEARCH_API_KEY=
 ```
 
 ## Async Usage

config/laravel-elastic-query.php

@@ -11,6 +11,7 @@
         'username' => env('ELASTICSEARCH_USERNAME', ''),
         'password' => env('ELASTICSEARCH_PASSWORD', ''),
         'ssl_verification' => env('ELASTICSEARCH_SSL_VERIFICATION', false),
+        'api_key' => env('ELASTICSEARCH_API_KEY', ''),
 
         'http_client' => null, // class implementing the \Psr\Http\Client\ClientInterface
         'http_client_options' => null, // for call_user_func_array

src/ElasticClient.php

@@ -205,6 +205,10 @@ public static function fromConfig(array $config): static
             $builder->setBasicAuthentication($username, $password);
         }
 
+        if (filled($config['api_key']) ?? null) {
+            $builder->setApiKey($config['api_key']);
+        }
+
         if (filled($config['http_client_logger'] ?? null)) {
             $logger = call_user_func_array($config['http_client_logger'], []);