Promise.race with AbortController

request-polling.js

const BLOG_POSTS_URL = 'https://jsonplaceholder.typicode.com/posts';
const FETCH_TIMEOUT = 3000;
const FETCH_INTERVAL = 4000;
const TIMEOUT_ERROR_MESSAGE = 'Request timed out';

const controller = new AbortController()
const getPosts = (signal) => fetch(BLOG_POSTS_URL, {
	signal
})

const timeoutRequest = () => new Promise((resolve, reject) => {
	setTimeout(() => {
		reject(new Error(TIMEOUT_ERROR_MESSAGE))
	}, FETCH_TIMEOUT)
})

let requestCount = 0

const polling = setInterval(() => {
	Promise.race([getPosts(controller.signal), timeoutRequest()])
		.then(response => response.json())
		.then(data => console.log("Data", data))
		.catch(error => console.error(error))

	requestCount++

	if(requestCount > 2) {
		clearInterval(polling)
	}

}, FETCH_INTERVAL)