Sfixer is a type safe wrapper for currency conversions in scala pulled from fixer.io. Sfixer uses circe and Jodatime.
Sfixer is http framework agnostic in its core implementation, but will provide a (WIP) akka transport api.
Note: Currently Sfixer does not support querying by a subset of symbols.
This is a work in progress library, and it is usable by pulling all rates
(i.e pulling all symbols for historical rates, or using the default latest endpoint)
To use, first provide a Rates implementation. You can do this by consuming a Json from sfixer.fixer.io using Rates.consume,
then unwrapping the option.
With the implicit rates, you can now perform any conversions in a type safe manner:
implicit val rates: Rates = ...
USD(100).convertTo[EUR] // Convert to typed Euros instance.
EUR(100).convertToValue[EUR] //Convert to unboxed Euros value
You can also smash together a list of identifiers and values to generate a list of Currencies.
Assume a matrix with the form:
| Identifier | Value | |
|---|---|---|
| 0 | EUR | 1600 |
| 1 | USD | 12 |
| 2 | AUD | 1 |
Using Currency.smash(identifier)(value), you can retrieve a generic list of currencies, which you can then converge into one value,
provided it is using the standard naming convention from the ECB
val unprocessed: List[(String, Double)] = ... //Assuming you have an identifier and a double
val currencyList: List[Currency] = unprocessed.map(u => Currency.smash(u._1)(u._2))
val audList : List[AUD] = currencyList.map(_.convertGenericToWrapped[AUD])
For more example usages: Look under the example in the akka package