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Make the 'message' sub-field of an 'Item' optional (it does not occur… #32

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Make the 'message' sub-field of an 'Item' optional (it does not occur… #32

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4 changes: 2 additions & 2 deletions src/Web/Slack/Types/Item.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ import Web.Slack.Types.Base
import Control.Lens.TH
import Prelude

data Item = MessageItem ChannelId MessageUpdate
data Item = MessageItem ChannelId (Maybe MessageUpdate)
| FileItem File
| FileCommentItem File Comment
| ChannelItem ChannelId
Expand All @@ -24,7 +24,7 @@ instance FromJSON Item where
parseJSON = withObject "item" (\o -> do
(typ :: String) <- o .: "type"
case typ of
"message" -> MessageItem <$> o .: "channel" <*> o .: "message"
"message" -> MessageItem <$> o .: "channel" <*> o .:? "message"
"file" -> FileItem <$> o .: "file"
"file_comment" -> FileCommentItem <$> o .: "file" <*> o .: "comment"
"channel" -> ChannelItem <$> o .: "channel"
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