The documentation in just says to create a +page.ts file of
import type { PageLoad } from './$types';
export const load: PageLoad = async ({ fetch, params }) => {
const res = await fetch(`/api/items/${params.id}`);
const item = await res.json();
return { item };
};
but it doesn't include any form of error handling. In vanilla JS, I will have to throw and catch with fetch, but in Svelte I am unable to find the necessary syntax and similar information.
I think your answer is to stream your fetches instead of awaiting them in the load function, as per the documentation:
[....] you can return a nested promise from a server load function, and SvelteKit will start rendering the page before it resolves. Once it completes, the result will be streamed to the page.
You could do something like this:
import type { PageLoad } from './$types';
export const load: PageLoad = async ({ fetch, params }) => {
const fetchItem = fetch(`/api/items/${params.id}`)
return {
streamed: {
item: fetchItem();
};
};
});
And handle the promise in your +page.svelte using a try/catch or the #await block from Svelte. Hope this helps!
try/catch? Or where and how do you intend to handle the error?dr-fetch(my creation), the only fetch wrapper in the world that can type the response body according to the HTTP response that it receives.