Exploring the Power of Nuxt's asyncData Feature for Handling Multiple Requests

Question

Exploring the Power of Nuxt's asyncData Feature for Handling Multiple Requests

Within my application, there is a seller page showcasing products listed by the specific seller. Utilizing asyncData to retrieve all necessary data for this page has been beneficial in terms of SEO.

asyncData ({params, app, error }) {

    return app.$axios.$get(`/seller/${params.username}`).then(async sellerRes => {

        let [categoriesRes, reviewsRes, productsRes] = await Promise.all([
            app.$axios.$get(`/categories`),
            app.$axios.$get(`/seller/${params.username}/reviews`),
            app.$axios.$get(`/seller/${params.username}/products`)
        ])

        return {
            seller: sellerRes.data,
            metaTitle: sellerRes.data.name,
            categories: categoriesRes.data,
            reviewsSummary: reviewsRes.summary,
            products: productsRes.data,
        }

    }).catch(e => {
        error({ statusCode: 404, message: 'Seller not found' })
    });
},

Although the current approach gets the job done, I have some doubts about its correctness.

Upon navigating to the page, I've noticed that the Nuxt progress bar appears twice, which seems unusual.

I've spent some time searching for examples of handling multiple requests in asyncData, but resources on this seem scarce.

Could it be that making multiple requests within asyncData might not be the recommended practice?

javascript vue.js vuejs2 nuxt.js

Answer 1

Answer №1

To maximize efficiency, consider implementing async await to run multiple requests simultaneously:

async asyncData ({ $axios }) {
  const [categoriesRes, articlesRes] = await Promise.all([ 
    $axios.get('/fetch/categories'),
    $axios.get('/fetch/articles'),
  ])

  return {
    categories: categoriesRes.data,
    articles: articlesRes.data,
  }
},

Answer 2

To maximize efficiency, consider implementing async await to run multiple requests simultaneously:

async asyncData ({ $axios }) {
  const [categoriesRes, articlesRes] = await Promise.all([ 
    $axios.get('/fetch/categories'),
    $axios.get('/fetch/articles'),
  ])

  return {
    categories: categoriesRes.data,
    articles: articlesRes.data,
  }
},

Answer 3

Answer №2

Indeed, with the utilization of async await, the code appears much neater and cleaner.

<template>
  <div class="container">
    <h1>Request 1:</h1>
    <h1>{{ post.title }}</h1>
    <pre>{{ post.body }}</pre>
    <br />
    <h1>Request 2:</h1>
    <h1>{{ todos.title }}</h1>
    <pre>{{ todos.completed }}</pre>
  </div>
</template>

<script>
import axios from "axios";

export default {
  async asyncData({ params }) {
    // Taking advantage of ES6 async/await feature
    const posts = await axios.get(
      `https://jsonplaceholder.typicode.com/posts/${params.id}`
    );
    const todos = await axios.get(
      `https://jsonplaceholder.typicode.com/todos/${params.id}`
    );
    return { post: posts.data, todos: todos.data };
  },
  head() {
    return {
      title: this.post.title
    };
  }
};
</script>

Here you can find a functional sandbox version. (Remember to assign a value for the :id route parameter)

Answer 4

Indeed, with the utilization of async await, the code appears much neater and cleaner.

<template>
  <div class="container">
    <h1>Request 1:</h1>
    <h1>{{ post.title }}</h1>
    <pre>{{ post.body }}</pre>
    <br />
    <h1>Request 2:</h1>
    <h1>{{ todos.title }}</h1>
    <pre>{{ todos.completed }}</pre>
  </div>
</template>

<script>
import axios from "axios";

export default {
  async asyncData({ params }) {
    // Taking advantage of ES6 async/await feature
    const posts = await axios.get(
      `https://jsonplaceholder.typicode.com/posts/${params.id}`
    );
    const todos = await axios.get(
      `https://jsonplaceholder.typicode.com/todos/${params.id}`
    );
    return { post: posts.data, todos: todos.data };
  },
  head() {
    return {
      title: this.post.title
    };
  }
};
</script>

Here you can find a functional sandbox version. (Remember to assign a value for the :id route parameter)

Answer 5

Answer №3

Is it possible?

fetchData ({params, app, error }) {

    return app.$axios.$get(`/seller/${params.username}`).then(sellerRes => {
        return Promise.all([
            app.$axios.$get(`/categories`),
            app.$axios.$get(`/seller/${params.username}/reviews`),
            app.$axios.$get(`/seller/${params.username}/products`)
        ]).then((categoriesRes, reviewsRes, productsRes) => {
            return {
                sellerInfo: sellerRes.data,
                pageTitle: sellerRes.data.name,
                availableCategories: categoriesRes.data,
                summaryOfReviews: reviewsRes.summary,
                productsList: productsRes.data,
            }
        })
    }).catch(e => {
        error({ statusCode: 404, message: 'Seller information not found' })
    });

},

This code snippet shows a series of promises being executed in sequence. The initial promise fetches data about the seller, and if successful, triggers additional requests for more information.

The fetchData method will wait for all promises to resolve before returning the final result.

Answer 6

Is it possible?

fetchData ({params, app, error }) {

    return app.$axios.$get(`/seller/${params.username}`).then(sellerRes => {
        return Promise.all([
            app.$axios.$get(`/categories`),
            app.$axios.$get(`/seller/${params.username}/reviews`),
            app.$axios.$get(`/seller/${params.username}/products`)
        ]).then((categoriesRes, reviewsRes, productsRes) => {
            return {
                sellerInfo: sellerRes.data,
                pageTitle: sellerRes.data.name,
                availableCategories: categoriesRes.data,
                summaryOfReviews: reviewsRes.summary,
                productsList: productsRes.data,
            }
        })
    }).catch(e => {
        error({ statusCode: 404, message: 'Seller information not found' })
    });

},

This code snippet shows a series of promises being executed in sequence. The initial promise fetches data about the seller, and if successful, triggers additional requests for more information.

The fetchData method will wait for all promises to resolve before returning the final result.

Exploring the Power of Nuxt's asyncData Feature for Handling Multiple Requests

Answer №1

Answer №2

Answer №3

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