chore: several server adapter improvements

Author: ymc9

packages/server/src/adapter/sveltekit/handler.ts

@@ -1,4 +1,4 @@
-import type { Handle, RequestEvent } from '@sveltejs/kit';
+import { type Handle, type RequestEvent } from '@sveltejs/kit';
 import type { ClientContract } from '@zenstackhq/orm';
 import type { SchemaDef } from '@zenstackhq/orm/schema';
 import { logInternalError, type CommonAdapterOptions } from '../common';
@@ -37,9 +37,18 @@ export default function createHandler<Schema extends SchemaDef>(options: SvelteK
             const query = Object.fromEntries(event.url.searchParams);
             let requestBody: unknown;
             if (event.request.body) {
-                const text = await event.request.text();
-                if (text) {
-                    requestBody = JSON.parse(text);
+                try {
+                    const text = await event.request.text();
+                    if (text) {
+                        requestBody = JSON.parse(text);
+                    }
+                } catch {
+                    return new Response(JSON.stringify({ message: 'invalid JSON payload' }), {
+                        status: 400,
+                        headers: {
+                            'content-type': 'application/json',
+                        },
+                    });
                 }
             }
 

packages/server/test/adapter/fastify.test.ts

@@ -146,7 +146,7 @@ describe('Fastify adapter tests - rest handler', () => {
         app.register(ZenStackFastifyPlugin, {
             prefix: '/api',
             getClient: () => client,
-            apiHandler: new RestApiHandler({ schema: client.schema, endpoint: 'http://localhost/api' }),
+            apiHandler: new RestApiHandler({ schema: client.$schema, endpoint: 'http://localhost/api' }),
         });
 
         let r = await app.inject({