diff --git a/server/src/Service/Database.php b/server/src/Service/Database.php
index 3d3ce15..7c919a1 100644
--- a/server/src/Service/Database.php
+++ b/server/src/Service/Database.php
@@ -2,11 +2,18 @@
 
 namespace App\Service;
 
+/**
+ * Class Database
+ * @package App\Service
+ */
 class Database
 {
     private $dotEnvParser;
     private $conn;
 
+    /**
+     * Database constructor.
+     */
     public function __construct()
     {
         $this->dotEnvParser = new DotEnvParser();
@@ -29,13 +36,18 @@ class Database
         }
     }
 
+    /**
+     * Get the PDO connection instance
+     *
+     * @return \PDO
+     */
     public function getConnection()
     {
         return $this->conn;
     }
 
     /**
-     * gestion des erreurs de retour d'execution de PDO
+     * Handle PDO execution errors
      * @param PDOStatement $stmt
      * @return void
      */
diff --git a/server/src/Service/DotEnvParser.php b/server/src/Service/DotEnvParser.php
index ab3ab16..a589846 100644
--- a/server/src/Service/DotEnvParser.php
+++ b/server/src/Service/DotEnvParser.php
@@ -4,6 +4,10 @@ namespace App\Service;
 
 use josegonzalez\Dotenv\Loader;
 
+/**
+ * Class DotEnvParser
+ * @package App\Service
+ */
 class DotEnvParser
 {
     private $file;
diff --git a/server/src/Service/JsonResponse.php b/server/src/Service/JsonResponse.php
index c7d32ec..1642850 100644
--- a/server/src/Service/JsonResponse.php
+++ b/server/src/Service/JsonResponse.php
@@ -2,6 +2,10 @@
 
 namespace App\Service;
 
+/**
+ * Class JsonResponse
+ * @package App\Service
+ */
 class JsonResponse
 {
     public function create(int $code, string $message = null, array $data = [])