Fetch data from our API

js/get-coin-data.js

@@ -1,61 +0,0 @@
-import coinBlacklist from './coin-blacklist';
-
-const SECONDS = 1;
-const MINUTES = SECONDS * 60;
-const HOURS = MINUTES * 60;
-
-const getCoinData = async () => {
-	// Fetch coin data
-	const response = await fetch('https://api.crypto51.app/coins.json');
-	let {coins} = await response.json();
-
-	// Format
-	coins = coins
-		.filter(coin => {
-			return (
-				typeof coin.attack_hourly_cost === 'number' &&
-				!coinBlacklist.includes(coin.symbol)
-			);
-		})
-		.map(coin => ({
-			symbol: coin.symbol,
-			name: coin.name,
-			hashRateCostPerSecond: (coin.attack_hourly_cost / HOURS),
-			algorithm: coin.algorithm,
-			hashRate: coin.hash_rate,
-			hashRateFormatted: coin.hash_rate_pretty,
-			marketCap: coin.market_cap,
-			marketCapFormatted: coin.market_cap_pretty,
-			blockTimeInSeconds: coin.block_time
-		}))
-		.sort((a, b) => b.marketCap - a.marketCap);
-
-	// Calculate confirmation data
-	const referenceCoinSymbol = 'BTC';
-	const referenceConfirmations = 6;
-	const referenceCoin = coins.find(coin => coin.symbol === referenceCoinSymbol);
-	if (!referenceCoin) {
-		return [];
-	}
-
-	const referenceCoinWorkTime = (referenceConfirmations * referenceCoin.blockTimeInSeconds);
-
-	coins = coins.map(coin => {
-		const multiplier = (referenceCoin.hashRateCostPerSecond / coin.hashRateCostPerSecond);
-		const workTime = (referenceCoinWorkTime * multiplier);
-		const confirmations = Math.ceil(workTime / coin.blockTimeInSeconds);
-		const estimatedTimeForConfs = (coin.blockTimeInSeconds * confirmations);
-
-		return {
-			...coin,
-			multiplier,
-			workTime,
-			confirmations,
-			estimatedTimeForConfs
-		};
-	});
-
-	return coins;
-};
-
-export default getCoinData;

js/index.js

@@ -1,7 +1,6 @@
 import 'babel-polyfill'; // eslint-disable-line import/no-unassigned-import
 import escapeHTML from 'escape-html';
 import {version} from '../package';
-import getCoinData from './get-coin-data';
 import getCoinSVGPath from './get-coin-svg-path';
 import getCoinName from './get-coin-name';
 import formatSeconds from './format-seconds';
@@ -75,7 +74,9 @@ const render = (coins, sortBy) => {
 	document.dispatchEvent(new Event('prerender-trigger'));
 };
 
-getCoinData().then(coins => {
+fetch('/api/data')
+	.then(response => response.json())
+	.then(coins => {
 		render(coins);
 
 		table.addEventListener('click', ({target}) => {