# workers
index.html :
```xml
Workers
1 USD = INR
```
main.js :
```javascript
const currencyWorker = new Worker("currency-rate-worker.js");
currencyWorker.postMessage('INR');
currencyWorker.onmessage = (event) =>
{
console.log("USD to INR rate:", event.data);
document.getElementById('currencyRate').innerText = event.data;
};
```
currency-rate-worker.js
```javascript
const get_usd2inr = async () =>
{
const url = "https://open.er-api.com/v6/latest/USD";
try
{
const response = await fetch(url);
const data = await response.json();
const usd2inr = Number(data.rates.INR.toFixed(2));
return usd2inr;
}
catch (error)
{
console.error('Error fetching exchange rate:', error);
throw error;
}
}
onmessage = async (e) =>
{
if (e.data === 'INR')
{
postMessage(await get_usd2inr());
}
};
```