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PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8326 GitOrigin-RevId: 02ee652302de5328e63054a6448dca10de7b5c1b
76 lines
2.8 KiB
Haskell
76 lines
2.8 KiB
Haskell
{-# LANGUAGE StandaloneKindSignatures #-}
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-- |
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-- This module holds functions and data types used for logging at the GraphQL
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-- layer. Unlike QueryLog, these are fired after queries are finished so could
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-- include things like execution time in future.
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module Hasura.GraphQL.Logging.ExecutionLog
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( ExecutionLog (..),
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ExecutionStats (..),
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statsToAnyBackend,
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MonadExecutionLog (..),
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)
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where
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import Data.Aeson qualified as J
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import Data.Kind (Type)
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import Hasura.EncJSON (EncJSON)
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import Hasura.GraphQL.Execute.Backend (ActionResult (..))
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import Hasura.Logging qualified as L
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import Hasura.Prelude
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import Hasura.RQL.Types.Backend (Backend (ExecutionStatistics))
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import Hasura.SQL.AnyBackend (AnyBackend, dispatchAnyBackend', mkAnyBackend)
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import Hasura.SQL.Backend (BackendType)
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import Hasura.SQL.Tag (HasTag)
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import Hasura.Server.Types (RequestId)
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import Hasura.Tracing (TraceT)
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-- | A GraphQL query, optionally generated SQL, and the request id makes up the
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-- | 'ExecutionLog'
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data ExecutionLog = ExecutionLog
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{ _elRequestId :: !RequestId,
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_elStatistics :: !(Maybe (AnyBackend ExecutionStats))
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}
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-- | 'ExecutionStatistics' is a type family, which means we can't partially
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-- apply it (in 'AnyBackend', for example). To get round this, we have a
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-- newtype that really just wraps the type family.
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type ExecutionStats :: BackendType -> Type
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newtype ExecutionStats b = ExecutionStats (ExecutionStatistics b)
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-- | When we want to log anything from 'DBStepInfo', we first need to transform
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-- the backend-specific execution statistics into 'AnyBackend' statistics. This
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-- is fine in practice because all we do with it is log it as JSON.
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statsToAnyBackend :: forall b. (HasTag b) => ActionResult b -> (Maybe (AnyBackend ExecutionStats), EncJSON)
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statsToAnyBackend ActionResult {..} =
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(fmap (mkAnyBackend @b . ExecutionStats) arStatistics, arResult)
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deriving newtype instance Backend b => J.ToJSON (ExecutionStats b)
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instance J.ToJSON ExecutionLog where
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toJSON (ExecutionLog reqId mstatistics) =
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J.object $
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[ "request_id" J..= reqId,
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"statistics" J..= case mstatistics of
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Just statistics -> dispatchAnyBackend' @J.ToJSON statistics J.toJSON
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Nothing -> J.toJSON ()
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]
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instance L.ToEngineLog ExecutionLog L.Hasura where
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toEngineLog ql = (L.LevelInfo, L.ELTExecutionLog, J.toJSON ql)
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class Monad m => MonadExecutionLog m where
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logExecutionLog ::
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L.Logger L.Hasura ->
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ExecutionLog ->
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m ()
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instance MonadExecutionLog m => MonadExecutionLog (ExceptT e m) where
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logExecutionLog logger l = lift $ logExecutionLog logger l
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instance MonadExecutionLog m => MonadExecutionLog (ReaderT r m) where
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logExecutionLog logger l = lift $ logExecutionLog logger l
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instance MonadExecutionLog m => MonadExecutionLog (TraceT m) where
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logExecutionLog logger l = lift $ logExecutionLog logger l
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