usdbrl.js

//Required library request (npm i request --save)

var getUSDBRL = function(callback) {
    var request = require('request');
    var url = 'http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.xchange%20where%20pair%3D%22USDBRL%22&format=json&diagnostics=false&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys';
    request(url, function (error, response, body) {
      if (!error && response.statusCode == 200) {
        var usdbrl = JSON.parse(body).query.results.rate.Rate;
        callback(usdbrl);
      } else {
        console.log("Got an error: ", error, ", status code: ", response.statusCode);
      }
    });
};


getUSDBRL(function(usdbrl){
    console.log(usdbrl);
});