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JavaScript

Posted by paulscanlon
paulscanlon
Courses Plus Student 26,735 Points

Really Stuck

Hi guys. Really stuck on this, im tearing my hair out.

const https = require('https');

const url = "https://api.fixer.io/latest";

function currency(base, end) {
  let currencyData;
  https.get(`${url}?base=${base}&symbols=${end}`, (res) => {
    let body = "";
    res.on('data', (data) => {
      body += data.toString();
    });
    res.on('end', () => {
      currencyData = JSON.parse(body);
      console.log(currencyData); //                         <--------THIS
    });
  });
}

currency("GBP", "USD");

I can get the currencyData variable to print what I need to the console but, if I try to assign it outside the function or push the result to an array, it comes up undefined. How do I retrieve thedata from this?

Thanks

Paul

2 Answers

Amber Cyr
Amber Cyr
19,699 Points
Amber Cyr
Amber Cyr
19,699 Points

you declared your currencyData variable within the function, making it a local not global variable. Try declaring the variable outside the currency function and see if that alleviates your problems.

paulscanlon
paulscanlon
Courses Plus Student 26,735 Points

Hi Thanks for your reply. Ive tried that and it still comes up undefined. Its so frustrating that it logs the data but its trapped within the callback and i cant access it

Amber Cyr
Amber Cyr
19,699 Points
Amber Cyr
Amber Cyr
19,699 Points

hmmm. Do you have example code on how you are trying to access the variable? That may give a clue as to what is going on.

paulscanlon
paulscanlon
Courses Plus Student 26,735 Points

Think I may have solved it by passing it through a function and storing it in an object literal..phew

Thank you so much for your help

Happy coding

Paul