solution for async await currency challenge, helping out student refactor some code

index.js

const axios = require('axios');
const fetch = require("node-fetch");

// Use the first API URL inside this function
async function getExchangeRate(currencyCode, amount) {
  const response = await axios.get('http://apilayer.net/api/live?access_key=20180807dcc302bd6ff89174614f5795&currencies=' + currencyCode + '&source=USD&format=1');
  const USD = 'USD'
  const interpolateCurrency = USD + currencyCode
  const apiAmount = response.data.quotes[interpolateCurrency]
  const total = apiAmount * amount;
  return total.toFixed(2)
}
  
// get just the country names
const getCountry = (response) => {
  const countries = []
  response.forEach((country) => {
    countries.push(country.name)
  })
  return countries
}

// Use the second API URL inside this function
async function getCountries(currencyCode) {
  const getData = await fetch(`https://restcountries.eu/rest/v2/currency/${currencyCode}`)
  const response = await getData.json()
  const arrayOfCountries = getCountry(response)
  return arrayOfCountries
}
  
// Complete the function convert given the following arguments:
// Hint: Use the functions you have completed above!
async function convertCurrencyUSD(currencyCode, amount) {
  const countryList = await getCountries(currencyCode)
  const countryListFormatted = countryList.join(", ")
  const totalFromExchange = await getExchangeRate(currencyCode, amount)
  return `\$${amount} USD is worth \$${totalFromExchange} ${currencyCode} 💰\nYou can spend ${currencyCode} in the following countries: ${countryListFormatted}`
}

// log result to console inside of try and catch
async function handleResult() {
  try {
    const result = await convertCurrencyUSD('AUD', 20)
    console.log(result)
  }
  catch(error) {
    console.log(error.message)
  }
}


handleResult()