Currency
========

Package currency implements a currency converter.

In short the package uses the European Central Banks exchange rates for
historical currency conversion. http://fixer.io API is used to access the the
data. 

See godoc for API and usage examples: https://pkg.go.dev/github.com/insmo/currency

Fixer.io API Token
------------------

It is required to get an API token from fixer.io to use this package. The helper
functions and default exchange look for an API token on the environment variable
`FIXER_API_TOKEN`.