用vue帮我写一段每隔5秒从服务端定时拉取数据如果有新数据则在页面淡入显示

<template>
  <div>
    <div v-for="data in dataList" :key="data.id" class="data-box" :class="{ 'new-data': data.newData }">
      {{ data.name }}
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      dataList: []
    }
  },
  mounted() {
    this.getData()
    setInterval(() => {
      this.getData()
    }, 5000)
  },
  methods: {
    getData() {
      // 发送获取数据的请求
      axios.get('/api/data').then(res => {
        // 判断是否有新数据
        const newDatas = res.data.filter(item => !this.dataList.find(data => data.id === item.id))
        // 将新数据添加到列表头部
        newDatas.forEach(item => {
          item.newData = true
          this.dataList.unshift(item)
        })
        // 将原有数据更新
        res.data.forEach(item => {
          const index = this.dataList.findIndex(data => data.id === item.id)
          if (index !== -1) {
            this.$set(this.dataList, index, item)
          }
        })
      })
    }
  }
}
</script>
<style>
.new-data {
  animation: fade-in 1s ease-out;
}
@keyframes fade-in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
</style