module Web.OpenWeatherMap.Client (
Location(..),
getWeather
) where
import Network.HTTP.Client (newManager, defaultManagerSettings)
import Servant.Client (ClientEnv(..), runClientM, ServantError)
import Servant.Common.BaseUrl (BaseUrl(..), Scheme(..))
import Servant.Common.Req (ClientM)
import Web.OpenWeatherMap.Types.CurrentWeather (CurrentWeather)
import qualified Web.OpenWeatherMap.API as API
data Location
= Name String
| Coord Double Double
getWeather
:: String
-> Location
-> IO (Either ServantError CurrentWeather)
getWeather appid loc =
defaultEnv >>= runClientM (api loc appid)
api
:: Location
-> String
-> ClientM CurrentWeather
api (Name city) = API.weatherByName (Just city) . Just
api (Coord lat lon) = API.weatherByCoord (Just lat) (Just lon) . Just
defaultEnv :: IO ClientEnv
defaultEnv = do
manager <- newManager defaultManagerSettings
return $ ClientEnv manager baseUrl
baseUrl :: BaseUrl
baseUrl = BaseUrl Http "api.openweathermap.org" 80 "/data/2.5"