fetching currency data from a third-party api code example

Example 1: rates api

GET https://api.ratesapi.io/api/latest{
  "base": "EUR",
  "date": "2020-09-11",
  "rates": {
    "GBP": 0.92408,
    "HKD": 9.1871,
    "IDR": 17772.61,
    "ILS": 4.1004,
    "DKK": 7.4402,
    "INR": 87.2431,
    "CHF": "..."
  }
}

Example 2: exchange rates api

$(document).ready(function () {
  // some variables

  var baseCurrency = 'USD';

  var baseNumber = 1;

  var targetCurrency = 'INR';

  var targetNumber;

  var url;

  currencyConverter(baseCurrency, baseNumber,targetCurrency,targetNumber)

  // get base currency value

  $("#base").change(function () {
    // base currency

    baseCurrency = $(this).children("option:selected").val();

    // call currencyConverter function

    currencyConverter(baseCurrency,baseNumber,targetCurrency,targetNumber)


  });

  // get base currency number

  $("#baseNumber").change(function(){

    // base number

    baseNumber = $(this).val()

    // call currencyConverter function

    currencyConverter(baseCurrency,baseNumber,targetCurrency,targetNumber)

  })

  // get target currency value

  $("#target").change(function () {
    // target currency

    targetCurrency = $(this).children("option:selected").val();

    // call currencyConverter function

    currencyConverter(baseCurrency,baseNumber,targetCurrency,targetNumber)

  });

  // get target currency number

  $("#targetNumber").change(function(){

    // target number

    targetNumber = $(this).val()

    // call currencyConverter function

    currencyConverter2(baseCurrency,baseNumber,targetCurrency,targetNumber)

  })


  // function to convert BaseCurrency to TargetCurrency

  function currencyConverter(baseCurrency, baseNumber,targetCurrency,targetNumber)
  {
      // api url

      url = "https://api.exchangeratesapi.io/latest?symbols="+targetCurrency+"&base="+baseCurrency

      // make a get request to api

    

      $.get(url,function(data){
          console.log(data.rates)

          for (let [key, value] of Object.entries(data.rates)) {
            
            var result = value * baseNumber

           $("#targetNumber").val(result)

          }
          console.log(`data.rates.${targetCurrency}`)
      })
  }

  function currencyConverter2(baseCurrency, baseNumber,targetCurrency,targetNumber)
  {
      // api url

      url = "https://api.exchangeratesapi.io/latest?symbols="+baseCurrency+"&base="+targetCurrency

      // make a get request to api

      $.get(url,function(data){
          console.log(data.rates)

          for (let [key, value] of Object.entries(data.rates)) {

            console.log(value)
            
            var result = value * targetNumber

           $("#baseNumber").val(result)

          }
          console.log(`data.rates.${targetCurrency}`)
      })
  }


});Copy