diff --git a/b3-dev/api/api-php/index.php b/b3-dev/api/api-php/index.php
index 9eac778..11d54b1 100644
--- a/b3-dev/api/api-php/index.php
+++ b/b3-dev/api/api-php/index.php
@@ -1,4 +1,5 @@
 <?php 
+    //from : https://api.wordpress.org/secret-key/1.1/salt
     define('AUTH_KEY',         '2(QMu)jt|2!(9t]V!4SB/y,+T]LcvGZ8-sV@vS6RUgR!_]&S}{6/RZjAmLeW28On');
 
     //header('Content-type: text/plain;charset=utf-8');
@@ -33,6 +34,7 @@
       break;
 
       case "/key/" :
+      case "/key" :
         if($vars['REQUEST_METHOD'] == "POST") 
         {
           if(!empty($_POST['user']) && !empty($_POST['password']))
@@ -40,12 +42,50 @@
             $user = $_POST['user'];
             $password = md5($_POST['password'].AUTH_KEY);
             $response = array('user'=>$user,'md5'=>$password);
+
+            //essayer de se connecter à ùysql (nb sur un xampp/wammp souvent l'utilisateur  root avec mot de passe vide)
+            //https://www.tutorialspoint.com/mysqli/mysqli_connection.htm
+            // na pas oublier de convertir les → en ->
+            $dbhost = 'localhost';
+            $dbuser = 'root';
+            $dbpass = '';
+            $dbname = 'apib3';
+            //si je préfixe avec @je n'aurais pas le message d'erreur.
+            @ $mysqli = new mysqli($dbhost, $dbuser, $dbpass, $dbname);
+            
+            if($mysqli->connect_errno ) {
+               header('HTTP/1.1 500 Internal Server Error');
+               echo json_encode( (object) array('error'=>"Connect failed: ".$mysqli->connect_error ));
+               exit();
+            }
+            else {
+              $response['connection'] = 'successful';
+              // vérifier si l'utilisateur existe 
+              $sql = "SELECT * FROM `user` WHERE `user` LIKE '".$user."' AND `password` ='".$password."'";
+              $result = $mysqli->query($sql);
+              if ($result->num_rows > 0) {
+                //
+              }
+              else {
+                $sql ="INSERT INTO `user` VALUES (NULL,'".$user."','".$password."')";
+                $result = $mysqli->query($sql);
+                if($mysqli->connect_errno ) {
+                  header('HTTP/1.1 500 Internal Server Error');
+                  echo json_encode( (object) array('error'=>"Insert failed: ".$mysqli->connect_error ));
+                  exit();
+                }
+                else {
+                  $response['insert'] = 'successful';
+                }
+              }
+            }
+            $mysqli->close();
             header('HTTP/1.1 200 OK');
             echo json_encode( (object) $response );
           }
           else 
           {
-            header('HTTP/1.1 403 Forbidden');
+            
             echo json_encode( (object) array('error'=>'PLease provide a valid user and matching password') );
           }
         }