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26 lines
578 B
Haskell
26 lines
578 B
Haskell
module Hasura.SQL.Value where
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import Hasura.Prelude
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import qualified Data.Aeson as A
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import qualified Data.Aeson.Types as AT
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import qualified Data.Text as T
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data TxtEncodedVal
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= TENull
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| TELit !T.Text
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deriving (Show, Eq, Generic)
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instance Hashable TxtEncodedVal
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instance A.ToJSON TxtEncodedVal where
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toJSON = \case
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TENull -> AT.Null
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TELit t -> AT.String t
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instance A.FromJSON TxtEncodedVal where
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parseJSON A.Null = pure TENull
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parseJSON (A.String t) = pure $ TELit t
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parseJSON v = AT.typeMismatch "String" v
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