@cyph/sdk/cli/modules/fetch.js

Cyph SDK

#!/usr/bin/env node

const fetchInternal = global.fetch;
const FormDataInternal = global.FormData;

if (!fetchInternal || !FormDataInternal) {
	throw new Error('Upgrade to Node.js 18+ for native fetch.');
}

export const fetch = async (url, options = {}, responseType = 'text') => {
	const fetchHandler = o => {
		if (!o.ok) {
			console.error(o);
			throw new Error(`Request failure: ${url}`);
		}

		if (
			options.requireCORS &&
			o.headers.get('Access-Control-Allow-Origin') !== '*'
		) {
			console.error(o);
			throw new Error(`Missing CORS header: ${url}`);
		}

		return o[responseType]();
	};

	const {timeout} = options;

	if (!timeout) {
		return fetchInternal(url, options).then(fetchHandler);
	}

	const abortController = new AbortController();
	options.signal = abortController.signal;
	options.timeout = undefined;

	let timeoutID;

	return Promise.race([
		fetchInternal(url, options)
			.then(fetchHandler)
			.then(o => {
				clearTimeout(timeoutID);
				return o;
			}),
		new Promise((_, reject) => {
			timeoutID = setTimeout(() => {
				reject('Request timeout exceeded.');
				abortController.abort();
			}, timeout);
		})
	]);
};

export const FormData = FormDataInternal;