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exchangerates: A Haskell client for https://exchangeratesapi.io/
[Skip to Readme]
exchangerates: A Haskell client for https://exchangeratesapi.io/
Please see the README on Github at https://github.com/NorfairKing/exchangerates#readme
[Skip to Readme]
Modules
- ExchangeRates
- ExchangeRates.API
- ExchangeRates.Cache
- ExchangeRates.Client
- ExchangeRates.Types
Downloads
- exchangerates-0.0.0.0.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
- No Candidates
| Versions [RSS] | 0.0.0.0 |
|---|---|
| Dependencies | aeson, base (>=4.7 && <5), containers, directory, http-api-data, http-client, http-client-tls, mtl, servant, servant-client, stm, text, time, validity (>=0.4.0.3), validity-containers, validity-time, yaml [details] |
| License | BSD-3-Clause |
| Copyright | Copyright: (c) 2018 Tom Sydney Kerckhove |
| Author | Tom Sydney Kerckhove |
| Maintainer | syd.kerckhove@gmail.com |
| Uploaded | by Norfair at 2018-07-28T10:09:15Z |
| Category | API |
| Home page | https://github.com/NorfairKing/exchangerates#readme |
| Bug tracker | https://github.com/NorfairKing/exchangerates/issues |
| Source repo | head: git clone https://github.com/NorfairKing/exchangerates |
| Distributions | |
| Reverse Dependencies | 1 direct, 0 indirect [details] |
| Downloads | 843 total (4 in the last 30 days) |
| Rating | (no votes yet) [estimated by Bayesian average] |
| Your Rating |
|
| Status | Docs not available [build log] All reported builds failed as of 2018-07-28 [all 3 reports] |
Readme for exchangerates-0.0.0.0
[back to package description]ExchangeRates, a Haskell client for https://exchangeratesapi.io/
Automatic Transparent Caching
Because historical currency conversion rates do not change post-hoc, we can cache them indefinitely. Because of this, and because https://exchangeratesapi.io/ is a free service, we should cache the results of the API as much as possible. This client automatically transparenly caches results so that the real API is only called when absolutely necessary.
Example usage:
main :: IO
main = do
rates <-
autoRunExchangeRatesClient $
withFileCache "/tmp/exchangerates.cache" $
getAtDate (fromGregorian 2018 01 19) (Just EUR) Nothing
case rates of
Left err -> die $ show err
Right v -> print v
Rates
{ ratesBase = EUR
, ratesDate = 2018-01-19
, ratesRates = fromList
[ (AUD,Rate {unRate = 6891408149802333 % 4503599627370496})
, (BGN,Rate {unRate = 550508759450701 % 281474976710656})
, (BRL,Rate {unRate = 8852275427559447 % 2251799813685248})
, (CAD,Rate {unRate = 3433093995944529 % 2251799813685248})
, (CHF,Rate {unRate = 5295332441862229 % 4503599627370496})
, (CNY,Rate {unRate = 8836175058891597 % 1125899906842624})
, (CZK,Rate {unRate = 3579376541341057 % 140737488355328})
, (DKK,Rate {unRate = 8382775166406073 % 1125899906842624})
, (GBP,Rate {unRate = 3979605810725939 % 4503599627370496})
, (HKD,Rate {unRate = 5393848683710959 % 562949953421312})
, (HRK,Rate {unRate = 4185645493678139 % 562949953421312})
, (HUF,Rate {unRate = 5439503924933427 % 17592186044416})
, (IDR,Rate {unRate = 16316 % 1})
, (ILS,Rate {unRate = 2355213720128743 % 562949953421312})
, (INR,Rate {unRate = 2752790087858127 % 35184372088832})
, (JPY,Rate {unRate = 4768889792920289 % 35184372088832})
, (KRW,Rate {unRate = 2873903492680909 % 2199023255552})
, (MXN,Rate {unRate = 6422133068630327 % 281474976710656})
, (MYR,Rate {unRate = 5433592950422503 % 1125899906842624})
, (NOK,Rate {unRate = 5417999236712733 % 562949953421312})
, (NZD,Rate {unRate = 3790004266413641 % 2251799813685248})
, (PHP,Rate {unRate = 8745146051423371 % 140737488355328})
, (PLN,Rate {unRate = 2348402025692345 % 562949953421312})
, (RON,Rate {unRate = 2623009012971261 % 562949953421312})
, (RUB,Rate {unRate = 609850721415725 % 8796093022208})
, (SEK,Rate {unRate = 5535655776977787 % 562949953421312})
, (SGD,Rate {unRate = 1821480869289997 % 1125899906842624})
, (THB,Rate {unRate = 2749236466277155 % 70368744177664})
, (TRY,Rate {unRate = 5241852196287205 % 1125899906842624})
, (USD,Rate {unRate = 5519161343342543 % 4503599627370496})
, (ZAR,Rate {unRate = 8418916553415721 % 562949953421312})
]
}