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-rw-r--r--src/Language/GraphQL/Foundation.hs58
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diff --git a/src/Language/GraphQL/Foundation.hs b/src/Language/GraphQL/Foundation.hs
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--- a/src/Language/GraphQL/Foundation.hs
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-{-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE NamedFieldPuns #-}
-{-# LANGUAGE RecordWildCards #-}
-
-module Language.GraphQL.Foundation
- ( module Language.GraphQL.Serialize
- , graphql
- ) where
-
-import Language.GraphQL.Serialize
-import Control.Monad.Catch (MonadCatch)
-import qualified Data.Aeson as Aeson
-import qualified Data.Aeson.Types as Aeson
-import Data.HashMap.Strict (HashMap)
-import qualified Data.Aeson.KeyMap as KeyMap
-import Data.Maybe (catMaybes)
-import qualified Data.Sequence as Seq
-import Data.Text (Text)
-import Data.Vector (Vector)
-import qualified Data.Vector as Vector
-import qualified Language.GraphQL as GraphQL
-import Language.GraphQL.AST
-import Language.GraphQL.Error
-import Language.GraphQL.Type.Schema (Schema)
-import Data.Bifunctor (Bifunctor(..))
-
--- | If the text parses correctly as a @GraphQL@ query the query is
--- executed using the given 'Schema'.
-graphql :: MonadCatch m
- => Schema m -- ^ Resolvers.
- -> Text -- ^ Text representing a @GraphQL@ request document.
- -> m (Either (ResponseEventStream m Aeson.Value) Aeson.Object) -- ^ Response.
-graphql schema = fmap (bimap stream formatResponse)
- . GraphQL.graphql schema mempty (mempty :: HashMap Name JSON)
- where
- stream :: ResponseEventStream m JSON -> ResponseEventStream m Aeson.Value
- stream = undefined
- formatResponse :: Response JSON -> Aeson.Object
- formatResponse Response{ errors, data' = JSON json } =
- let dataResponse = KeyMap.singleton "data" json
- in case errors of
- Seq.Empty -> dataResponse
- _ -> flip (KeyMap.insert "errors") dataResponse
- $ Aeson.Array $ foldr fromError mempty errors
- fromError :: Error -> Vector Aeson.Value -> Vector Aeson.Value
- fromError Error{..} = Vector.cons $ Aeson.object $ catMaybes
- [ Just ("message", Aeson.String message)
- , toMaybe fromLocation "locations" locations
- , toMaybe fromPath "path" path
- ]
- fromPath (Segment segment) = Aeson.String segment
- fromPath (Index index) = Aeson.toJSON index
- fromLocation Location{..} = Aeson.object
- [ ("line", Aeson.toJSON line)
- , ("column", Aeson.toJSON column)
- ]
- toMaybe _ _ [] = Nothing
- toMaybe f key xs = Just (key, Aeson.listValue f xs)