How can I use the Fetch API in Svelte for advanced data handling?

How can I use the Fetch API in Svelte for advanced data handling?

You can use the Fetch API in Svelte by creating a store to manage your data and using lifecycle methods to fetch data.

Can you show me an example of fetching data from an API?

Sure! You can use the onMount lifecycle function to fetch data when the component mounts. Here's a simple example:

import { onMount } from 'svelte';

let data;

onMount(async () => {
    const response = await fetch('https://api.example.com/data');
    data = await response.json();
});

What about error handling when fetching data?

You can handle errors by using a try-catch block around your fetch call. Here's how:

onMount(async () => {
    try {
        const response = await fetch('https://api.example.com/data');
        if (!response.ok) throw new Error('Network response was not ok');
        data = await response.json();
    } catch (error) {
        console.error('Fetch error:', error);
    }
});

How can I update the data after fetching?

You can update the data by calling the fetch function again, or by using a Svelte store to manage state across components.