fix missing exports warnings

playground/app.vue

@@ -1,12 +1,18 @@
 <script setup lang="ts">
 const client = useClient()
-const { data, error } = await useAsyncData('random', () => client.query('hello'), {
-  server: false,
+const { data, error } = await useAsyncData('getUser', () => client.query('getUser', {
+  username: 'asd',
+}), {
+  server: true,
+})
+
+watchEffect(() => {
+  console.log(process.server, error.value)
 })
 </script>
 
 <template>
   <div>
-    {{ data }}
+    {{ error }}
   </div>
 </template>

playground/server/trpc/index.ts

@@ -0,0 +1,21 @@
+// ~/server/trpc/index.ts
+import { z } from 'zod'
+import * as trpc from '@trpc/server'
+
+const fakeUsers = [
+  { id: 1, username: 'jcena', name: 'John Cena' },
+  { id: 2, username: 'dbatista', name: 'Dave Batista' },
+  { id: 3, username: 'jbiden', name: 'Joe Biden' },
+]
+
+export const router = trpc
+  .router()
+  .query('getUser', {
+    // validate input with Zod
+    input: z.object({
+      username: z.string().min(5),
+    }),
+    resolve(req) {
+      return fakeUsers.find(i => i.username === req.input.username)
+    },
+  })