Error encountered while attempting to utilize 'load' in the fetch function of a layer

I've been exploring ways to implement some pre-update logic for a layer, and I believe the fetch method within the layer's props could be the key. Initially, my aim is to understand the default behavior before incorporating custom logic, but I'm encountering difficulties with this initial test.

Here's the snippet of code defining the fetch prop for the layer:

fetch: async (url: string, context: any) => {
    return await load(url, context.layer.loaders, context.loaderOptions);
}

In my component, I import load as follows:

import { load } from '@loaders.gl/core';

Unfortunately, it appears that this setup may not be suitable for TypeScript environments, as evidenced by an error message following the import statement:

Error: node_modules/@loaders.gl/loader-utils/dist/lib/node/fs.d.ts:1:8

  • error TS1192: Module '"fs"' has no default export.
  • import fs from 'fs';

This issue seems related to improper syntax for importing in TypeScript.

Could you advise on how I can incorporate load into my Angular project? I know that deck.gl utilizes a load function during layer updates, based on my observation of a call stack without attempting to override fetch:

load @ https://localhost:44305/vendor.js:34188

How can I explicitly integrate load into my overridden fetch method?

Thank you.

Answer №1

The solution was simple. I just made a custom function in a JavaScript file

import { load } from '@loaders.gl/core';
import { MVTLoader } from '@loaders.gl/mvt';
import { JSONLoader } from '@loaders.gl/loader-utils'


export default async function LoadTile(url, loadOptions) {
    return await load(url, [MVTLoader, JSONLoader], loadOptions);
}

With this setup, calling LoadTile from TypeScript code became effortless.

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