Fix preflight.

laravel/src/SyncApi.php

@@ -3,6 +3,7 @@
 namespace JamesWildDev\ReactNativeAppHelpers;
 
 use Illuminate\Support\Facades\Route;
+use Illuminate\Support\Arr;
 
 /**
  * Represents a sync API as a whole.  Use this to configure your API once, then
@@ -107,11 +108,7 @@ public function generateRoutes(): void
       foreach ($this->constants as $constant) {
         $key = $constant->generateCamelCasedName();
 
-        $data = $constant->value;
-        ksort($data);
-        $version = hash('sha1', json_encode($data));
-
-        $singletons[$key] = compact('version');
+        $singletons[$key] = Arr::only($constant->getCachedValue(), 'version');
       }
 
       $collections = [];

laravel/src/SyncApiConstant.php

@@ -98,23 +98,28 @@ public function hashData(array $data): string
     return hash('sha1', json_encode($data));
   }
 
-  public function generateConstantRoutes(): void
+  public function getCachedValue()
   {
-    $kebabCasedName = $this->generateKebabCasedName();
-
-    Route::get(
-      $kebabCasedName,
-      function () use ($kebabCasedName) {
-        $data = Cache::remember(
-          'sync_api_constant_' . $kebabCasedName,
-          3600,
-          $this->valueFactory
-        );
+    return Cache::remember(
+      'sync-api-constant-' . $this->generateKebabCasedName(),
+      3600,
+      function () {
+        $data = ($this->valueFactory)();
 
         return [
-          'version' => $this->hashData($data),
           'data' => $data,
+          'version' => hash('sha1', json_encode($data)),
         ];
+      }
+    );
+  }
+
+  public function generateConstantRoutes(): void
+  {
+    Route::get(
+      $this->generateKebabCasedName(),
+      function () {
+        return $this->getCachedValue();
       },
     );
   }