Samuel Karani samuelkarani

Building Similarly; Creator of ai-sugar; Programming writer;

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samuelkarani / JWT-build-your-own.js

Last active January 6, 2022 17:03

	//Original Reference: https://guseyn.com/posts/simple-jwt

	function payloadWithExpirationTime (payload, minutesFromNow) {
	let date = new Date()
	date.setMinutes(date.getMinutes() + minutesFromNow)
	payload.exp = date.getTime()
	return payload
	}

samuelkarani / helpers.js

Created April 26, 2021 13:04

	export function validURL(string) {
	const pattern = new RegExp(
	"^(https?:\\/\\/)?" + // protocol
	"((([a-z\\d]([a-z\\d-][a-z\\d]))\\.)+[a-z]{2,}\|" + // domain name
	"((\\d{1,3}\\.){3}\\d{1,3}))" + // OR ip (v4) address
	"(\\:\\d+)?(\\/[-a-z\\d%_.~+])" + // port and path
	"(\\?[;&a-z\\d%_.~+=-]*)?" + // query string
	"(\\#[-a-z\\d_]*)?$",
	"i"
	); // fragment locator

samuelkarani / google drive url apis.js

Last active March 1, 2025 17:39


	export const getThumbnail = (id, size = 300) =>
	`https://drive.google.com/thumbnail?id=${id}&sz=${size}`;

	export const getIcon = (mimeType) =>
	`https://drive-thirdparty.googleusercontent.com/256/type/${mimeType}`;

	export const getFile = (id) => `https://drive.google.com/uc?id=${id}`;

	const downloadFile = (id) =>

samuelkarani / react-cache.ts

Last active May 25, 2023 10:15

Simple React "cache" api function. No clearing strategies e.g. LRU etc. Just simple interval clearing. Official version is currently available ONLY in react canaries and RSC environment i.e. “react-server” exports condition. Depends on object-hash package to create hash key from arguments and optional additional key.

	import objectHash from "object-hash";

	const cacheTimeout = 60 * 60 * 1000

	let store: Record<string, unknown> = {};

	export function cache<A extends unknown[], B = unknown>(
	fn: (...args: A) => Promise<B>,
	key?: string // optional key for guaranteed uniqueness
	) {

samuelkarani / bounding-rect-hook.tsx

Created August 5, 2023 10:24

	export function useBoundingClientRect<T extends HTMLElement>() {
	const [rect, setRect] = useState<DOMRect \| null>(null);
	const ref = useRef<T>(null);

	const update = useCallback(() => {
	if (ref.current) setRect(ref.current.getBoundingClientRect());
	else setRect(null);
	}, []);

	useEffectOnce(() => {

samuelkarani / google-topics-list-categories.json

Last active February 10, 2025 19:46

samuelkarani / google-topics-list-full

Created February 10, 2025 19:46

	[
	"/Adult",
	"/Arts & Entertainment/Celebrities & Entertainment News",
	"/Arts & Entertainment/Other",
	"/Arts & Entertainment/Comics & Animation/Anime & Manga",
	"/Arts & Entertainment/Comics & Animation/Cartoons",
	"/Arts & Entertainment/Comics & Animation/Comics",
	"/Arts & Entertainment/Comics & Animation/Other",
	"/Arts & Entertainment/Entertainment Industry/Film & TV Industry",
	"/Arts & Entertainment/Entertainment Industry/Recording Industry",

samuelkarani / vercel-functions-streaming-cors.ts

Last active May 1, 2025 12:03

	import { openai } from "@ai-sdk/openai";
	import { streamText } from "ai";

	export function OPTIONS() {
	return new Response("OK", {
	status: 200,
	headers: {
	"Access-Control-Allow-Credentials": "true",
	"Access-Control-Allow-Origin": "*",
	"Access-Control-Allow-Methods": "GET,OPTIONS,PATCH,DELETE,POST,PUT",

	[
	"Adult",
	"Arts & Entertainment",
	"Autos & Vehicles",
	"Beauty & Fitness",
	"Books & Literature",
	"Business & Industrial",
	"Computers & Electronics",
	"Finance",
	"Food & Drink",