Fieldtype.js

const Fieldtype = {
  mixins: [window.Storyblok.plugin],
  template: `<div>
  <select v-model="model.value">
    <option :key="tag.name" :value="tag.name" v-for="tag in tags">{{tag.name}}</option>
  </select>
  </div>`,
  data() {
    return {
      tags: []
    }
  },
  methods: {
    initWith() {
      return {
        plugin: 'taglist',
        value: ''
      }
    },
    pluginCreated() {
      this.api
        .get('cdn/tags')
        .then((res) => {
          this.tags = res.data.tags
        })
    }
  },
  watch: {
    'model': {
      handler: function (value) {
        this.$emit('changed-model', value);
      },
      deep: true
    }
  }
}