cleanup login function

src/ElixForms/Auth/ElixFormsAuthenticationClient.php

@@ -23,12 +23,15 @@ class ElixFormsAuthenticationClient {
      * @throws ElixFormsException Se le credenziali sono errate o c'è un errore server
      */
     public function login(string $username, string $password): string {
-        $this->baseUrl = rtrim($this->baseUrl,'/');
         $url = "{$this->baseUrl}/services/api/authentication/login/v1";
 
         try {
             $response = $this->httpClient->post($url, [
-                'form_params' => [
+                'headers' => [
+                    'x-requested-with' => 'XMLHttpRequest',
+                    'Content-Type' => 'application/json'
+                ],
+                'json' => [
                     'username' => $username,
                     'password' => $password
                 ]
@@ -70,7 +73,7 @@ class ElixFormsAuthenticationClient {
         try {
             $response = $this->httpClient->post($url, [
                 'headers' => [
-                    'Authorization' => 'Bearer ' . $token,
+                    'Authorization' => "Bearer {$token}",
                     'Content-Type' => 'application/x-www-form-urlencoded'
                 ]
             ]);