Add game to cart and buy it ?

[SENPAY98K]

Hi,
is it posible to add games to cart and buy with steam balance ?
Tried it, but not sure if im skipping/missung other requests.

// Add games to cart
for (let i = 0; i < arrayGames.length; i++) {
	var gameID = Number(arrayGames[i]);
	logINFO(`gameID: ` + gameID);

	await addToCart(Steam, Community, sessionID, gameID);
	await SLEEP(5000);
}
// Get transaction id
let purchaseId = await scrapTransactionID(Community);
logINFO(purchaseId);
// Buy games in cart
await purchaseGames(Community, purchaseId);

function addToCart(Steam, Community, sessionID, subid) {
	return new Promise((resolve) => {
		Community.httpRequestPost(
			`https://store.steampowered.com/cart/`,
			{
				form: {
					snr: "1_5_9__403",
					originating_snr: "1_direct-navigation__",
					action: "add_to_cart",
					sessionid: sessionID,
					subid: subid,
				},
				headers: {
					Host: "store.steampowered.com",
					Origin: "https://store.steampowered.com",
				},
				json: true,
			},
			(err, res, body) => {
				if (!err && res.resposeCode == 200) {
					logINFO(`Success`);
				} else {
					logERROR(`Failed`);
				}
			}
		);
		resolve();
	});
} // func()

function scrapTransactionID(Community) {
	return new Promise((resolve) => {
		Community.httpRequestPost(
			`https://store.steampowered.com/cart`,
			(err, res, body) => {
				if (!err) {
					let pattern = /https:\/\/store.steampowered.com\/checkout\/\?purchasetype=gift&cart=(\d+)&/;
					let match = body.match(pattern);
					if (match) {
						logINFO(`Matched: ` + match[1]);
						resolve(match[1]);
					}
				}
			}
		);
	});
} //func()

function purchaseGames(Community, purchaseId) {
	return new Promise((resolve) => {
		Community.httpRequestPost(
			`https://store.steampowered.com/checkout/finalizetransaction/`,
			{
				form: {
					transid: purchaseId,
					CardCVV2: "",
					browserInfo: {
						language: "en-US",
						javaEnabled: "false",
						colorDepth: 24,
						screenHeight: 600,
						screenWidth: 800,
					},
				},
				headers: {
					Host: "store.steampowered.com",
					Origin: "https://store.steampowered.com",
					Referer: `https://store.steampowered.com/checkout/?purchasetype=self&cart=${purchaseId}&snr=1_8_4__503`,
				},
				json: true,
			},
			(err, res, body) => {
				if (!err) {
					logINFO("success");
				}
			}
		);
		resolve();
	});
} //func()