Default request options for guzzle client

Author: haphan

src/Common/Service/Builder.php

@@ -35,15 +35,21 @@ class Builder
      */
     private $defaults = ['urlType' => 'publicURL'];
 
+    /** @var array */
+    private $requestOptions;
+
     /**
-     * @param array $globalOptions Options that will be applied to every service created by this builder.
-     *                             Eventually they will be merged (and if necessary overridden) by the
-     *                             service-specific options passed in.
+     * @param array  $globalOptions  Options that will be applied to every service created by this builder.
+     *                               Eventually they will be merged (and if necessary overridden) by the
+     *                               service-specific options passed in.
+     * @param string $rootNamespace  API classes' root namespace
+     * @param array  $requestOptions Guzzle client default request option
      */
-    public function __construct(array $globalOptions = [], $rootNamespace = 'OpenCloud')
+    public function __construct(array $globalOptions = [], $rootNamespace = 'OpenCloud', $requestOptions = [])
     {
         $this->globalOptions = $globalOptions;
         $this->rootNamespace = $rootNamespace;
+        $this->requestOptions = $requestOptions;
     }
 
     private function getClasses($namespace)
@@ -138,10 +144,12 @@ private function getStack(callable $authHandler, Token $token = null): HandlerSt
 
     private function httpClient(string $baseUrl, HandlerStack $stack): ClientInterface
     {
-        return new Client([
+        $options = array_merge($this->requestOptions, [
             'base_uri' => Utils::normalizeUrl($baseUrl),
             'handler'  => $stack,
         ]);
+
+        return new Client($options);
     }
 
     private function mergeOptions(array $serviceOptions): array