bitcoin-converter-cli/bin/convertBTC.js

A CLI to convert Bitcoin to any currency provided

"use strict";

var chalk = require('chalk');

var request = require('request-promise-native');

var ora = require('ora');

var spinner = ora({
  text: 'Retrieving Bitcoin data...',
  color: 'yellow'
});
var PRICE_TYPES = {
  low: 'low',
  high: 'high',
  sale: 'ask',
  buy: 'bid'
};

module.exports = function () {
  var c = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'USD';
  var amount = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
  var baseUrl = 'https://economia.awesomeapi.com.br/json/all';
  var currency = c.toUpperCase();
  spinner.start();

  var handleSuccess = function handleSuccess(body) {
    var coins = JSON.parse(body);
    var currentCoin = coins[currency];

    var toCurrency = function toCurrency(value) {
      return parseFloat(value).toFixed(3);
    };

    var getPrice = function getPrice() {
      var type = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : PRICE_TYPES.high;
      return currency === 'BRL' ? "".concat(toCurrency(coins.BTC[type] * amount)) : "".concat(toCurrency(coins.BTC[type] / currentCoin[type] * amount));
    };

    console.info("".concat(chalk.hex('#B84BFF').bold('Bitcoin Converter')).concat(chalk.hex('#D697FF')(" | ".concat(amount, " BTC to ").concat(chalk.underline.bold(currency), ":")), "\n\n").concat(chalk.cyan.bold('LOW:'), " ").concat(chalk.yellow("".concat(getPrice(PRICE_TYPES.low))), "\n\n").concat(chalk.cyan.bold('HIGH:'), " ").concat(chalk.yellow("".concat(getPrice())), "\n\n").concat(chalk.cyan.bold('VARIANT:'), " ").concat(chalk.yellow("".concat(coins.BTC.pctChange, "%")), "\n\n").concat(chalk.cyan.bold('SALE:'), " ").concat(chalk.yellow("".concat(getPrice(PRICE_TYPES.sale))), "\n\n").concat(chalk.cyan.bold('BUY:'), " ").concat(chalk.yellow("".concat(getPrice(PRICE_TYPES.buy))), "\n"));
  };

  var handleError = function handleError(err) {
    spinner.stop();
    console.info(chalk.red('Something went wrong in the API. Try in a few minutes.'));
    return err;
  };

  return request(baseUrl).then(function (body) {
    return spinner.stop() && body;
  }).then(handleSuccess)["catch"](handleError);
};