Update authentication handling to use Request\Body::form for grant_type in BaseController

Author: smoghe-bw

.github/workflows/test.yml

@@ -35,6 +35,8 @@ jobs:
         BW_ACCOUNT_ID: ${{ secrets.BW_ACCOUNT_ID }}
         BW_USERNAME: ${{ secrets.BW_USERNAME }}
         BW_PASSWORD: ${{ secrets.BW_PASSWORD }}
+        BW_CLIENT_ID: ${{ secrets.BW_CLIENT_ID }}
+        BW_CLIENT_SECRET: ${{ secrets.BW_CLIENT_SECRET }}
         BW_VOICE_APPLICATION_ID: ${{ secrets.BW_VOICE_APPLICATION_ID }}
         BW_MESSAGING_APPLICATION_ID: ${{ secrets.BW_MESSAGING_APPLICATION_ID }}
         BW_NUMBER: ${{ secrets.BW_NUMBER }}

src/Controllers/BaseController.php

@@ -132,7 +132,7 @@ protected function configureOAuth2Auth(&$headers)
                     $this->config->getClientId() . ':' . $this->config->getClientSecret()
                 ),
             ],
-            'grant_type=client_credentials'
+            \Unirest\Request\Body::Form(['grant_type' => 'client_credentials'])
         );
 
         if ($response->code < 200 || $response->code > 299 || !isset($response->body->access_token)) {