diff --git a/lib/Service/ConfigProxy.php b/lib/Service/ConfigProxy.php
new file mode 100644
index 0000000..9b94d31
--- /dev/null
+++ b/lib/Service/ConfigProxy.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace OCA\SideMenu\Service;
+
+use OC\User\User;
+use OCA\SideMenu\AppInfo\Application;
+use OCP\IConfig;
+
+/**
+ * class Config.
+ *
+ * @author Simon Vieille <simon@deblan.fr>
+ */
+class ConfigProxy
+{
+    /**
+     * @var IConfig
+     */
+    protected $config;
+
+    public function __construct(IConfig $config)
+    {
+        $this->config = $config;
+    }
+
+    public function getAppValue(string $name, string $default): string
+    {
+        return (string) $this->config->getAppValue(Application::APP_ID, $name, $default);
+    }
+
+    public function getUserValue(User $user, string $name, string $default): string
+    {
+        return (string) $this->config->getUserValue($user->getUid(), Application::APP_ID, $name, $default);
+    }
+
+    public function getAppValueBool(string $name, string $default): bool
+    {
+        return (bool) $this->getAppValue($name, $default);
+    }
+
+    public function getAppValueArray(string $name, string $default): array
+    {
+        return (array) json_decode($this->getAppValue($name, $default), true);
+    }
+
+    public function getAppValueInt(string $name, string $default): int
+    {
+        return (int) $this->getAppValue($name, $default);
+    }
+
+    public function getUserValueBool(User $user, string $name, string $default): bool
+    {
+        return (bool) $this->getUserValue($user, $name, $default);
+    }
+
+    public function getUserValueArray(User $user, string $name, string $default): array
+    {
+        return (array) json_decode($this->getUserValue($user, $name, $default), true);
+    }
+
+    public function getUserValueInt(User $user, string $name, string $default): int
+    {
+        return (int) $this->getUserValue($user, $name, $default);
+    }
+}