GET requests in components in Vue - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of making a GET request inside a Vue component?

A GET request fetches data from a server or API so the component can display or use that data.

beginner

Which Vue Composition API function is commonly used to perform side effects like GET requests when a component loads?

The onMounted function runs code after the component is added to the page, making it a good place for GET requests.

beginner

Why should GET requests be asynchronous in Vue components?

Asynchronous GET requests let the component keep working without freezing the page while waiting for data to arrive.

intermediate

How do you store data fetched from a GET request in a Vue component for use in the template?

You store the data in a reactive variable using ref or reactive so Vue updates the template when data changes.

intermediate

What is a simple way to handle errors from GET requests in Vue components?

Use try...catch inside the async function to catch errors and update a reactive error variable to show a message.

Where is the best place to put a GET request in a Vue 3 component using Composition API?

A In a separate CSS file

B Directly inside the <code>setup</code> function without lifecycle hooks

C Inside the template section

D Inside the <code>onMounted</code> lifecycle hook

GET requests should be done inside onMounted to run after the component is ready.

Which Vue function creates a reactive variable to store fetched data?

A <code>computed</code>

B <code>ref</code>

C <code>watch</code>

D <code>provide</code>

ref creates a reactive variable that updates the template when changed.

What keyword makes a GET request function asynchronous in Vue?

A fetch

B await

C async

D return

The async keyword marks a function as asynchronous, allowing use of await inside.

How do you handle errors from a GET request in Vue?

A Use <code>try...catch</code> inside the async function

B Ignore errors and hope for the best

C Put error handling in CSS

D Use <code>console.log</code> only

Using try...catch lets you catch errors and respond properly in the component.

What happens if you don’t make GET requests asynchronous in Vue?

A The page may freeze while waiting for data

B The data loads instantly

C Vue automatically makes it async

D The component won’t render at all

Synchronous requests block the page, causing freezing or delays in rendering.

Explain how to fetch data with a GET request inside a Vue 3 component using the Composition API.

Think about when the component is ready and how to keep data reactive.

Describe why asynchronous GET requests improve user experience in Vue components.

Consider what happens if the app waits too long for data.