Bugfix for #666

api.php

             $stream = $psr17Factory->createStream($content);
             $stream->rewind();
             $response = $response->withBody($stream);
-            $response = $response->withHeader('Content-Type', $contentType);
+            $response = $response->withHeader('Content-Type', $contentType . '; charset=utf-8');
             $response = $response->withHeader('Content-Length', strlen($content));
             return $response;
         }
         'username' => 'php-crud-api',
         'password' => 'php-crud-api',
         'database' => 'php-crud-api',
-        // d'debug' => false
+        // 'debug' => false
     ]);
     $request = RequestFactory::fromGlobals();
     $api = new Api($config);

src/Tqdev/PhpCrudApi/ResponseFactory.php

         $stream = $psr17Factory->createStream($content);
         $stream->rewind();
         $response = $response->withBody($stream);
-        $response = $response->withHeader('Content-Type', $contentType);
+        $response = $response->withHeader('Content-Type', $contentType . '; charset=utf-8');
         $response = $response->withHeader('Content-Length', strlen($content));
         return $response;
     }

src/index.php

     'username' => 'php-crud-api',
     'password' => 'php-crud-api',
     'database' => 'php-crud-api',
-    // d'debug' => false
+    // 'debug' => false
 ]);
 $request = RequestFactory::fromGlobals();
 $api = new Api($config);