CryptoCheck.js

.nvmrc

v8.9.3

check.js

const request = require("request-promise-native");
const coins = require("./coins");

const logBalance = (results) => {
	let total = 0;
	console.log("########################");
	console.log("### CRYPTOCURRENCIES ###");
	console.log("########################")
	console.log();
	results.forEach(([result]) => {
		const currency = result.id;
		const balance = coins[currency] * result.price_usd;
		console.log(`${currency.toUpperCase()} : $ ${balance.toFixed(2)}`);
		total += balance;
	});
	console.log("---");
	console.log(`TOTAL : $ ${total.toFixed(2)}`);
	console.log();

}

async function getTicker(currency) {
	return request({uri: `https://api.coinmarketcap.com/v1/ticker/${currency}`,json: true});
};

(async function() {
	const currencies = Promise.all(Object.keys(coins).map((currency) => getTicker(currency)));
	
	try {
		const results = await currencies;
		logBalance(results);
	} catch (e) {
		console.log(e);
	}
})();

coins.json

{
	"cardano": 400,
	"siacoin": 1245,
	"zencash": 95,
	"bitcoin": 0.03
}

package.json

{
  "name": "check",
  "version": "1.0.0",
  "description": "",
  "main": "check.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "request": "^2.83.0",
    "request-promise-native": "^1.0.5"
  }
}