diff --git a/.gitignore b/.gitignore
index 0e342a2..494f9c4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,7 @@
 /.idea/
 
 # Composer
-/composer.phar
\ No newline at end of file
+/composer.phar
+
+# Project files
+/app_token
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d0a0e9a
--- /dev/null
+++ b/README.md
@@ -0,0 +1,38 @@
+
+# Freebox v6 PHP API v3
+
+Implementation PHP de l'API de la freebox.
+
+## Prérequis
+
+Ce projet est basé sur composer. Pensez a installer les dependences :)
+
+## Utilisation
+
+### Application
+
+La premiere étape est de créer une application. 
+La seconde est de demander l'autorisation de connexion a la freebox (cf: cadrant led du Freebox Server)
+La derniere est de récuperer une session pour utiliser les divers services de l'API
+
+```php
+$App = new \alphayax\freebox\utils\Application( 'com.alphayax.freebox.example', 'Freebox PHP API Exemple', '0.0.1');
+$App->authorize();
+$App->openSession();
+```
+
+### Services
+Les appels aux services de l'API se font de la maniere suivante :
+Voiuci un exemple d'utilisation de l'API System. 
+1. Nous créons un nouveau service "System"
+2. Nous demandons de récuperer la configuration actuelle
+3. Nous utilisons le modele retourné pour acceder a la donnée `uptime`
+ 
+```php
+$System = new \alphayax\freebox\api\v3\services\config\System( $App);
+
+/** @var \alphayax\freebox\api\v3\models\SystemConfig $SystemConfig */
+$SystemConfig = $System->getConfiguration();
+
+\alphayax\utils\cli\IO::stdout( 'Uptime : '. $SystemConfig->uptime);
+```
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 05a527c..3129ae8 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     }
   ],
   "require" : {
-    "alphayax/php_utils" : "*"
+    "alphayax/php_utils" : "dev-master"
   },
   "autoload": {
     "psr-4": {"alphayax\\": "./"}
diff --git a/exemple.php b/exemple.php
new file mode 100644
index 0000000..ad6b33a
--- /dev/null
+++ b/exemple.php
@@ -0,0 +1,17 @@
+<?php
+
+/// Require Composer AutoLoader
+require_once 'vendor/autoload.php';
+
+/// Define our application
+$App = new \alphayax\freebox\utils\Application( 'com.alphayax.freebox.example', 'Freebox PHP API Exemple', '0.0.1');
+$App->authorize();
+$App->openSession();
+
+
+$System = new \alphayax\freebox\api\v3\services\config\System( $App);
+
+/** @var \alphayax\freebox\api\v3\models\SystemConfig $SystemConfig */
+$SystemConfig = $System->getConfiguration();
+
+\alphayax\utils\cli\IO::stdout( 'Uptime : '. $SystemConfig->uptime);
diff --git a/freebox/api/v3/Model.php b/freebox/api/v3/Model.php
index bd2fb24..19dc14a 100644
--- a/freebox/api/v3/Model.php
+++ b/freebox/api/v3/Model.php
@@ -19,4 +19,31 @@ abstract class Model {
         }
     }
 
+    /**
+     * Magic getter
+     * @param $name
+     * @return null
+     */
+    function __get( $name){
+        if( property_exists( static::class, $name)){
+            return $this->$name;
+        }
+        return null;    // TODO : maybe throw exception ?
+    }
+
+    /**
+     * Magic setter
+     * @param $name
+     * @param $value
+     */
+    public function __set( $name, $value){
+        if( property_exists( static::class, $name)){
+            $this->$name = $value;
+        }
+    }
+
+    public function toArray(){
+
+    }
+
 }
\ No newline at end of file
diff --git a/freebox/api/v3/services/login/Authorize.php b/freebox/api/v3/services/login/Authorize.php
index a4a8a2d..35db33a 100644
--- a/freebox/api/v3/services/login/Authorize.php
+++ b/freebox/api/v3/services/login/Authorize.php
@@ -45,13 +45,14 @@ class Authorize extends Service {
 
         if( ! $this->application->haveAppToken()){
             $this->ask_authorization();
-            while( $this->status == self::STATUS_PENDING){
+            while( in_array( $this->status, [self::STATUS_UNKNOWN, self::STATUS_PENDING])){
                 $this->get_authorization_status();
                 if( $this->status == self::STATUS_GRANTED){
+                    $this->application->setAppToken( $this->app_token);
                     $this->application->saveAppToken();
                     break;
                 }
-                sleep( 10);
+                sleep( 5);
             }
 
             /// For verbose
diff --git a/freebox/utils/Application.php b/freebox/utils/Application.php
index c4f04d1..931d85e 100644
--- a/freebox/utils/Application.php
+++ b/freebox/utils/Application.php
@@ -116,7 +116,9 @@ class Application {
      * Write the app token in a file for later use
      */
     public function saveAppToken(){
-        file_put_contents( 'app_token', $this->app_token);
+        if( ! file_put_contents( 'app_token', $this->app_token)){
+            throw new \Exception('Unable to save app token in file');
+        }
     }
 
 }