mirror of
https://github.com/hasura/graphql-engine.git
synced 2024-12-17 12:31:52 +03:00
9be6f706e6
This mostly simplifies the RootFlds type to make it clearer what it’s used for, but it has the convenient side-effect of preventing some “impossible” cases using the type system.
75 lines
2.5 KiB
Haskell
75 lines
2.5 KiB
Haskell
module Hasura.GraphQL.Context where
|
|
|
|
import Data.Aeson
|
|
import Data.Has
|
|
import Hasura.Prelude
|
|
|
|
import qualified Data.HashMap.Strict as Map
|
|
import qualified Data.HashSet as Set
|
|
import qualified Language.GraphQL.Draft.Syntax as G
|
|
|
|
import Hasura.GraphQL.Resolve.Types
|
|
import Hasura.GraphQL.Validate.Types
|
|
import Hasura.RQL.Types.Permission
|
|
|
|
-- | A /GraphQL context/, aka the final output of GraphQL schema generation. Used to both validate
|
|
-- incoming queries and respond to introspection queries.
|
|
--
|
|
-- Combines information from 'TyAgg', 'RootFields', and 'InsCtxMap' datatypes and adds a bit more on
|
|
-- top. Constructed via the 'mkGCtx' smart constructor.
|
|
data GCtx
|
|
= GCtx
|
|
-- GraphQL type information
|
|
{ _gTypes :: !TypeMap
|
|
, _gFields :: !FieldMap
|
|
, _gQueryRoot :: !ObjTyInfo
|
|
, _gMutRoot :: !(Maybe ObjTyInfo)
|
|
, _gSubRoot :: !(Maybe ObjTyInfo)
|
|
-- Postgres type information
|
|
, _gOrdByCtx :: !OrdByCtx
|
|
, _gQueryCtxMap :: !QueryCtxMap
|
|
, _gMutationCtxMap :: !MutationCtxMap
|
|
, _gInsCtxMap :: !InsCtxMap
|
|
} deriving (Show, Eq)
|
|
|
|
data RemoteGCtx
|
|
= RemoteGCtx
|
|
{ _rgTypes :: !TypeMap
|
|
, _rgQueryRoot :: !ObjTyInfo
|
|
, _rgMutationRoot :: !(Maybe ObjTyInfo)
|
|
, _rgSubscriptionRoot :: !(Maybe ObjTyInfo)
|
|
} deriving (Show, Eq)
|
|
|
|
instance Has TypeMap GCtx where
|
|
getter = _gTypes
|
|
modifier f ctx = ctx { _gTypes = f $ _gTypes ctx }
|
|
|
|
instance ToJSON GCtx where
|
|
toJSON _ = String "ToJSON for GCtx is not implemented"
|
|
|
|
type GCtxMap = Map.HashMap RoleName GCtx
|
|
|
|
mkQueryRootTyInfo :: [ObjFldInfo] -> ObjTyInfo
|
|
mkQueryRootTyInfo flds =
|
|
mkHsraObjTyInfo (Just "query root")
|
|
(G.NamedType "query_root") Set.empty $
|
|
mapFromL _fiName $ schemaFld:typeFld:flds
|
|
where
|
|
schemaFld = mkHsraObjFldInfo Nothing "__schema" Map.empty $
|
|
G.toGT $ G.toNT $ G.NamedType "__Schema"
|
|
typeFld = mkHsraObjFldInfo Nothing "__type" typeFldArgs $
|
|
G.toGT $ G.NamedType "__Type"
|
|
typeFldArgs = mapFromL _iviName $ pure $
|
|
InpValInfo (Just "name of the type") "name" Nothing
|
|
$ G.toGT $ G.toNT $ G.NamedType "String"
|
|
|
|
emptyGCtx :: GCtx
|
|
emptyGCtx =
|
|
let queryRoot = mkQueryRootTyInfo []
|
|
allTys = mkTyInfoMap $ TIObj queryRoot:defaultTypes
|
|
-- for now subscription root is query root
|
|
in GCtx allTys mempty queryRoot Nothing Nothing mempty mempty mempty mempty
|
|
|
|
defaultTypes :: [TypeInfo]
|
|
defaultTypes = $(fromSchemaDocQ defaultSchema TLHasuraType)
|