Update resolver to lts-20.18

libatrade.cabal

@@ -38,7 +38,6 @@ library
                      , bytestring
                      , connection
                      , containers
-                     , datetime
                      , errors
                      , extra
                      , gitrev

src/ATrade/Broker/Protocol.hs

@@ -22,8 +22,8 @@ import           ATrade.Types
 import           Control.Applicative     ((<|>))
 import           Control.Error.Util
 import           Data.Aeson
+import           Data.Aeson.KeyMap       as KM
 import           Data.Aeson.Types        hiding (parse)
-import qualified Data.HashMap.Strict     as HM
 import           Data.Int
 import qualified Data.Text               as T
 import           Data.Text.Encoding
@@ -56,16 +56,16 @@ instance FromJSON Notification where
   parseJSON = withObject "notification" $ \obj -> parseNotification obj
     where
       parseNotification obj =
-        case HM.lookup "notification-sqnum" obj of
+        case KM.lookup "notification-sqnum" obj of
           Just (Number sqnum) -> parseTrade (NotificationSqnum $ truncate sqnum) obj <|>
                                  parseOrder (NotificationSqnum $ truncate sqnum) obj <|>
                                  fail "Can't parse notification"
           Just _ -> fail "Invalid sqnum"
           Nothing -> fail "Unable to lookup notification sqnum"
-      parseTrade sqnum obj = case HM.lookup "trade" obj of
+      parseTrade sqnum obj = case KM.lookup "trade" obj of
         Just val -> TradeNotification sqnum <$> (parseJSON val)
         Nothing  -> fail "Can't parse trade"
-      parseOrder sqnum obj = case HM.lookup "order-state" obj of
+      parseOrder sqnum obj = case KM.lookup "order-state" obj of
         Just v -> withObject "object" (\os -> do
           oid <- os .: "order-id"
           ns <- os .: "new-state"
@@ -97,16 +97,16 @@ instance FromJSON BrokerServerRequest where
     where
       parseRequest :: RequestSqnum -> ClientIdentity -> Object -> Parser BrokerServerRequest
       parseRequest sqnum clientIdentity obj
-        | HM.member "order" obj = do
+        | KM.member "order" obj = do
           order <- obj .: "order"
           RequestSubmitOrder sqnum clientIdentity <$> parseJSON order
-        | HM.member "cancel-order" obj = do
+        | KM.member "cancel-order" obj = do
           orderId <- obj .: "cancel-order"
           RequestCancelOrder sqnum clientIdentity <$> parseJSON orderId
-        | HM.member "request-notifications" obj = do
+        | KM.member "request-notifications" obj = do
             initialSqnum <- obj .: "initial-sqnum"
             return (RequestNotifications sqnum clientIdentity (NotificationSqnum initialSqnum))
-        | HM.member "request-current-sqnum" obj =
+        | KM.member "request-current-sqnum" obj =
             return (RequestCurrentSqnum sqnum clientIdentity)
       parseRequest _ _ _ = fail "Invalid request object"
 
@@ -134,17 +134,17 @@ data BrokerServerResponse = ResponseOk
 
 instance FromJSON BrokerServerResponse where
   parseJSON = withObject "object" (\obj ->
-    if | HM.member "result" obj -> do
+    if | KM.member "result" obj -> do
            result <- obj .: "result"
            if (result :: T.Text) == "success"
              then return ResponseOk
              else do
                msg <- obj .:? "message" .!= ""
                return (ResponseError msg)
-       | HM.member "notifications" obj -> do
+       | KM.member "notifications" obj -> do
            notifications <- obj .: "notifications"
            ResponseNotifications <$> parseJSON notifications
-       | HM.member "current-sqnum" obj -> do
+       | KM.member "current-sqnum" obj -> do
            rawSqnum <- obj .: "current-sqnum"
            return $ ResponseCurrentSqnum (NotificationSqnum rawSqnum)
        | otherwise -> fail "Unable to parse BrokerServerResponse")
@@ -234,11 +234,11 @@ instance ToJSON TradeSinkMessage where
 
 instance FromJSON TradeSinkMessage where
   parseJSON = withObject "object" (\obj ->
-    case HM.lookup "command" obj of
+    case KM.lookup "command" obj of
       Nothing  -> parseTrade obj
       Just cmd -> return TradeSinkHeartBeat)
     where
-      parseTrade obj = case HM.lookup "trade" obj of
+      parseTrade obj = case KM.lookup "trade" obj of
         Just (Object v) -> do
           acc <- v .: "account"
           sec <- v .: "security"

src/ATrade/Types.hs

@@ -37,11 +37,11 @@ import           ATrade.Price
 
 import           Control.Monad
 import           Data.Aeson
+import           Data.Aeson.Key
 import           Data.Aeson.Types
 import           Data.Binary.Get
 import           Data.Binary.Put
 import           Data.ByteString.Lazy  as B
-import           Data.DateTime
 import           Data.Int
 import           Data.List             as L
 import           Data.Maybe
@@ -151,7 +151,7 @@ parseTick = do
     volume = volume }
 
 makeTimestamp :: Word64 -> Word32 -> UTCTime
-makeTimestamp sec usec = addUTCTime (fromRational $ toInteger usec % 1000000) (fromSeconds . toInteger $ sec)
+makeTimestamp sec usec = addUTCTime (fromRational $ toInteger usec % 1000000) (posixSecondsToUTCTime . fromIntegral $ sec)
 
 deserializeTick :: [ByteString] -> Maybe Tick
 deserializeTick (header:rawData:_) = case runGetOrFail parseTick rawData of
@@ -386,7 +386,7 @@ instance ToJSON Order where
         "state" .= orderState order,
         "signal-id" .= orderSignalId order ]
       ifMaybe :: (ToJSON a, KeyValue b) => Text -> (a -> Bool) -> a -> Maybe b
-      ifMaybe name pred val = if pred val then Just (name .= val) else Nothing
+      ifMaybe name pred val = if pred val then Just (fromText name .= val) else Nothing
 
 data Trade = Trade {
   tradeOrderId        :: OrderId,

stack.yaml

@@ -15,7 +15,7 @@
 # resolver:
 #  name: custom-snapshot
 #  location: "./custom-snapshot.yaml"
-resolver: lts-18.18
+resolver: lts-20.18
 
 # User packages to be built.
 # Various formats can be used as shown in the example below.
@@ -41,10 +41,11 @@ packages:
 # Dependency packages to be pulled from upstream that are not in the resolver
 # (e.g., acme-missiles-0.3)
 extra-deps:
-- datetime-0.3.1
 - hexdump-0.1
-- co-log-0.4.0.1@sha256:3d4c17f37693c80d1aa2c41669bc3438fac3e89dc5f479e57d79bc3ddc4dfcc5,5087
-- ansi-terminal-0.10.3@sha256:e2fbcef5f980dc234c7ad8e2fa433b0e8109132c9e643bc40ea5608cd5697797,3226
+- co-log-0.5.0.0
+- chronos-1.1.5@sha256:ca35be5fdbbb384414226b4467c6d1c8b44defe59a9c8a3af32c1c5fb250c781,3830
+- typerep-map-0.5.0.0@sha256:34f1ba9b268a6d52e26ae460011a5571e8099b50a3f4a7c8db25dd8efe3be8ee,4667
+
 
 # Override default flag values for local packages and extra-deps
 flags: {}