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|
{-# LANGUAGE NumericUnderscores #-}
{-# LANGUAGE OverloadedStrings #-}
module SpaceTraders.APIClient.Client
( APIError(..)
, APIMessage(..)
, defaultReq
, fromJSONValue
, send
, tokenReq
) where
import Control.Concurrent
import Data.Aeson
import Data.Aeson.Types
import qualified Data.Text as T
import qualified Data.Text.Encoding as T
import Network.HTTP.Simple
import Network.HTTP.Types.Status
import SpaceTraders.APIClient.Errors
data FromJSON a => APIMessage a = APIMessage { data_ :: a } deriving (Show)
instance FromJSON a => FromJSON (APIMessage a) where
parseJSON = withObject "APIMessage" $ \o -> APIMessage <$> o .: "data"
defaultReq :: Request
defaultReq = setRequestHost "api.spacetraders.io"
$ setRequestPort 443
$ setRequestSecure True
$ setRequestHeader "Content-Type" ["application/json"]
$ defaultRequest
tokenReq :: T.Text -> Request
tokenReq token = setRequestHeader "Authorization" [T.encodeUtf8 $ "Bearer " <> token]
$ defaultReq
fromJSONValue :: FromJSON a => Value -> Either String a
fromJSONValue = parseEither parseJSON
send :: FromJSON a => Request -> IO (Either APIError a)
send request = do
response <- httpLbs request
let status = statusCode $ getResponseStatus response
body = getResponseBody response
if status >= 200 && status <= 299
then case eitherDecode body of
Left e -> return . Left $ APIError (-1000) (T.pack $ concat ["Error decoding JSON APIMessage: ", e]) Null
Right r -> return . Right $ data_ r
else case eitherDecode body of
Left e -> return . Left $ APIError (-status) (T.pack $ concat ["Error decoding JSON APIError: ", e, ". Got HTTP body: ", show body]) Null
Right (APIRateLimit r) -> do
threadDelay (1_000_000 * (round $ retryAfter r))
send request
Right e -> return $ Left e
|
