currency-codes: ISO-4217 Currency Codes
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- currency-codes-3.0.0.1.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
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| Versions [RSS] | 1.0.0.0, 1.0.0.1, 1.0.0.2, 1.0.0.3, 2.0.0.0, 3.0.0.0, 3.0.0.1 (info) |
|---|---|
| Change log | CHANGELOG.md |
| Dependencies | aeson (>=0.7.0.0), base (>=4 && <5), bson (>=0.2.0), deepseq, random (>=1.0.0.0), safe (>=0.2), text (>=1.0.0.0) [details] |
| License | MIT |
| Copyright | (c) 2017-2018 Chordify |
| Author | Chordify |
| Maintainer | Matthias Benkort <matthias.benkort@gmail.com> |
| Category | Data |
| Home page | https://github.com/chordify/currency-codes |
| Bug tracker | https://github.com/chordify/currency-codes/issues |
| Uploaded | by KtorZ at 2018-03-19T17:22:58Z |
| Distributions | NixOS:3.0.0.1 |
| Reverse Dependencies | 3 direct, 0 indirect [details] |
| Downloads | 4992 total (18 in the last 30 days) |
| Rating | (no votes yet) [estimated by Bayesian average] |
| Your Rating | |
| Status | Docs available [build log] Last success reported on 2018-03-19 [all 1 reports] |
Readme for currency-codes-3.0.0.1
[back to package description]Currency Codes (ISO-4217) 
Overview
This package mainly provides 2 data types to represent and manipulate currencies according to the ISO 4217 standard.
It also provides a handful of instances for common typeclasses (Show, Read, Random, ToJSON, FromJSON, Val, Data, Typeable, Generic, NFData).
Example
import Data.Aeson (ToJSON(..))
import Data.Currency (Currency, Alpha(..))
import GHC.Generics (Generic)
import qualified Safe
import qualified Data.Aeson as Aeson
import qualified Data.Currency as Currency
myCurrencies :: [Currency]
myCurrencies =
[ Currency.fromAlpha EUR
, Currency.fromAlpha USD
]
data Transaction = Transaction
{ amount :: Integer
, currency :: Currency
} deriving (Eq, Show, Generic)
instance ToJSON Transaction where
toJSON =
Aeson.genericToJSON Aeson.defaultOptions