Proxy for https://hub.docker.com/r/paidyinc/one-frame
- In order to work around limitation of one-frame API there is a cache that is refreshed by timer. Following confg options are available:
- cache-expiration-time - default 5 min
- rates-request-interval - default 4 min (about 360 request per day)
- rates-request-retry-interval - default 10 sec
- The cache is purely functional, so it is extracted into a separate package.