Function downloadFile

api/download/src/download.ts:23–64

(manifest: Manifest)

import type { IDResponse } from './types';

export const downloadFile = async (manifest: Manifest) => {
	const { id, subset, weight, style, extension, version, url } = manifest;

	const res = await fetch(url);
	info(`Downloading ${url}`);

	if (!res.ok) {
		throw new StatusError(500, `Could not fetch ${url}`);
	}

	const buffer = await res.arrayBuffer();

	// Add to bucket
	await putBucket(bucketPath(manifest), buffer);

	// If woff, decompress and add to ttf folder
	if (extension === 'woff') {
		let ttfBuffer: ArrayBuffer | undefined;
		try {
			ttfBuffer = await woff2ttf.toSfnt(new Uint8Array(buffer));
		} catch (error) {
			throw new StatusError(
				500,
				`Could not convert woff to ttf ${String(error)}`,
			);
		}
		if (!ttfBuffer) throw new StatusError(500, 'Could not convert woff to ttf');

		// Add to bucket
		await putBucket(
			bucketPath({
				id,
				subset,
				weight,
				style,
				extension: 'ttf',
				version,
			}),
			ttfBuffer,
		);
	}
};

export const downloadVariableFile = async (manifest: ManifestVariable) => {
	const { url } = manifest;