money-exchange

The smallest money conversion library that actually works.
25 lines of code, 0 dependencies.

Usage

const Money = require("money-exchange");
const fx = new Money();
 
fx.init().then(() => {
    fx.convert(68, "USD", "EUR"); // 60.9647
});

API

.init(source)

You'll need to init the library first to make it work. Init installs currency data from https://api.exchangeratesapi.io/latest.
If this API will die you can set other, there's a lot of websites providing same JSON syntax tree.

Returns promise.

.convert(amount, from, to)

Converts money. you can see all currencies with .rates.

Returns number.

.rates

Object with currency rates.

Running without currency data provider

You can set your own currencies in .rates object. Don't forget that base currency should equal 1.

Example:

const Money = require("money-exchange");
const fx = new Money();
 
fx.rates = {
    "BTC": 1,
    "ETH": 0.022,
    "DASH": 0.0111
};
 
fx.convert(15, "ETH", "BTC");