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