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How to Convert Currencies in Node.js

Introduction

Node.js is a powerful JavaScript runtime environment that allows developers to create server-side applications. It is a popular choice for web development, and it is also used for creating applications that require currency conversion. In this article, we will discuss how to convert currencies in Node.js.

Using a Currency Conversion Library

The easiest way to convert currencies in Node.js is to use a currency conversion library. There are several libraries available, such as currency.js and money.js. These libraries provide an easy-to-use API for converting currencies. For example, with currency.js, you can convert currencies like this:

const currency = require('currency.js');
const convertedAmount = currency(100, {from: 'USD', to: 'EUR'}).toString();

This code will convert 100 US Dollars to Euros. You can also use money.js to convert currencies. For example:

const money = require('money.js');
const convertedAmount = money.convert(100, {from: 'USD', to: 'EUR'});

This code will also convert 100 US Dollars to Euros.

Using an Exchange Rate API

Another option for converting currencies in Node.js is to use an exchange rate API. There are several APIs available, such as the Open Exchange Rates API and the Fixer API. These APIs provide an easy-to-use API for retrieving exchange rates. For example, with the Open Exchange Rates API, you can retrieve the exchange rate like this:

const axios = require('axios');
const url = 'https://openexchangerates.org/api/latest.json?app_id=YOUR_APP_ID';axios.get(url).then(response => {
  const exchangeRate = response.data.rates.EUR;
});

This code will retrieve the exchange rate for Euros. You can then use this exchange rate to convert currencies. For example:

const convertedAmount = 100 * exchangeRate;

This code will convert 100 US Dollars to Euros.

Read too: our axios tutorial how to install and use axios in node.js

Summary

In this article, we discussed how to convert currencies in Node.js. We looked at two different methods: using a currency conversion library and using an exchange rate API. Both methods are easy to use and provide a reliable way to convert currencies.


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