如何将外部获取的数据转换为vue使用和显示？

<template>
  <div>
    <ul v-if="items.length">
      <li v-for="item in items" :key="item.id">{{ item.name }}</li>
    </ul>
    <p v-else>Loading...</p>
  </div>
</template>

<script>
import { ref, onMounted } from 'vue';

export default {
  setup() {
    const items = ref([]);

    onMounted(async () => {
      try {
        const response = await fetch('https://api.example.com/items');
        const data = await response.json();
        items.value = data; // 确保更新响应式数据
      } catch (error) {
        console.error('Error fetching items:', error);
      }
    });

    return { items };
  }
};
</script>