posts.vue

<template>
  <div>
    <ul v-if="posts">
      <li v-for="post in posts" v-bind:key="post.id">{{ post.title }}</li>
    </ul>
  </div>
</template>

<script>
  import axios from 'axios';
  
  export default {
    props: ['category'],
    
    async created() {
      const posts = await axios.get(`/wp-json/wp/v2/posts?categories={$this.category}`)
      if (posts.data) {
        this.posts = posts.data;
      }
    },
    
    data() {
      return {
        posts: null
      }
    }
    
  }
</script>