flylocal-web/pages/_mountain.vue

<template>
  <div>
    <h1>Continent: {{ continent }}</h1>
    <h2>Mountain: {{ mountain }}</h2>
    <p>Path: {{ $route.path }}</p>
    <NuxtLink to="/">
      Back to Mountains
    </NuxtLink>
  </div>
</template>
<script>
export default {
  async asyncData ({ params, redirect }) {
    const mountains = await fetch(
      'https://api.nuxtjs.dev/mountains'
    ).then(res => res.json())

    const filteredMountain = mountains.find(
      el =>
        el.continent.toLowerCase() === params.continent &&
        el.slug === params.mountain
    )
    if (filteredMountain) {
      return {
        continent: filteredMountain.continent,
        mountain: filteredMountain.title
      }
    } else {
      redirect('/')
    }
  }
}
</script>