chore(cloud_auth): Simplify middleware getter

Author: dnys1

services/celest_cloud_auth/CHANGELOG.md

@@ -1,3 +1,7 @@
+## NEXT
+
+- chore: Simplify `middleware` getter
+
 ## 0.3.3
 
 - fix: Migration of Cloud Auth tables

services/celest_cloud_auth/lib/celest_cloud_auth.dart

@@ -100,15 +100,7 @@ final class CelestCloudAuth {
   }
 
   /// An authorization middleware which can be added to a Shelf pipeline.
-  AuthorizationMiddleware get middleware => AuthorizationMiddleware(
-        issuer: context.rootEntity,
-        routeMap: routeMap,
-        corks: corks,
-        cryptoKeys: cryptoKeys,
-        users: users,
-        db: db,
-        authorizer: authorizer,
-      );
+  AuthorizationMiddleware get middleware => authenticationService.middleware;
 
   @visibleForTesting
   final CloudAuthDatabaseMixin db;

services/celest_cloud_auth/lib/src/authentication/authentication_service.dart

@@ -135,8 +135,8 @@ extension type AuthenticationService._(_Deps _deps) implements Object {
       ..post('/sessions%3AendSession', handleEndSession);
   }
 
-  Handler get handler {
-    final requestAuthorizer = AuthorizationMiddleware(
+  AuthorizationMiddleware get middleware {
+    return AuthorizationMiddleware(
       routeMap: _deps.routeMap,
       corks: _deps.corks,
       cryptoKeys: _deps.cryptoKeys,
@@ -145,9 +145,12 @@ extension type AuthenticationService._(_Deps _deps) implements Object {
       authorizer: _deps.authorizer,
       issuer: _deps.issuer,
     );
+  }
+
+  Handler get handler {
     return const Pipeline()
         .addMiddleware(const CloudExceptionMiddleware().call)
-        .addMiddleware(requestAuthorizer.call)
+        .addMiddleware(middleware.call)
         .addHandler(_router.call);
   }