graphql-engine/server/src-lib/Hasura/Backends/MySQL/Instances/Transport.hs
David Overton aac64f2c81 Source typename customization (close graphql-engine#6974)
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/1616
GitOrigin-RevId: f7eefd2367929209aa77895ea585e96a99a78d47
2021-10-29 14:43:14 +00:00

76 lines
2.3 KiB
Haskell

{-# OPTIONS_GHC -fno-warn-orphans #-}
module Hasura.Backends.MySQL.Instances.Transport (runQuery) where
import Data.Aeson qualified as J
import Data.Text.Extended
import Hasura.Backends.MySQL.Instances.Execute ()
import Hasura.Base.Error
import Hasura.EncJSON
import Hasura.GraphQL.Execute.Backend
import Hasura.GraphQL.Logging
import Hasura.GraphQL.Namespace (RootFieldAlias)
import Hasura.GraphQL.Transport.Backend
import Hasura.GraphQL.Transport.HTTP.Protocol
import Hasura.Logging qualified as L
import Hasura.Prelude
import Hasura.RQL.Types
import Hasura.Server.Types (RequestId)
import Hasura.Session
import Hasura.Tracing
import Hasura.Tracing qualified as Tracing
instance BackendTransport 'MySQL where
runDBQuery = runQuery
runDBQueryExplain = runQueryExplain
runDBMutation = error "runDBMutation: MySQL backend does not support this operation yet."
runDBSubscription = error "runDBSubscription: MySQL backend does not support this operation yet."
runQuery ::
( MonadIO m,
MonadQueryLog m,
MonadTrace m,
MonadError QErr m
) =>
RequestId ->
GQLReqUnparsed ->
RootFieldAlias ->
UserInfo ->
L.Logger L.Hasura ->
SourceConfig 'MySQL ->
Tracing.TraceT (ExceptT QErr IO) EncJSON ->
Maybe (PreparedQuery 'MySQL) ->
-- | Also return the time spent in the PG query; for telemetry.
m (DiffTime, EncJSON)
runQuery reqId query fieldName _userInfo logger _sourceConfig tx genSql = do
logQueryLog logger $ mkQueryLog query fieldName genSql reqId
withElapsedTime $
trace ("MySQL Query for root field " <>> fieldName) $
Tracing.interpTraceT run tx
run :: (MonadIO m, MonadError QErr m) => ExceptT QErr IO a -> m a
run action = do
result <- liftIO $ runExceptT action
result `onLeft` throwError
runQueryExplain ::
( MonadIO m,
MonadError QErr m
) =>
DBStepInfo 'MySQL ->
m EncJSON
runQueryExplain (DBStepInfo _ _ _ action) = run $ runTraceTWithReporter noReporter "explain" action
mkQueryLog ::
GQLReqUnparsed ->
RootFieldAlias ->
Maybe (PreparedQuery 'MySQL) ->
RequestId ->
QueryLog
mkQueryLog gqlQuery fieldName preparedSql requestId =
QueryLog gqlQuery ((fieldName,) <$> generatedQuery) requestId QueryLogKindDatabase
where
generatedQuery =
preparedSql <&> \queryString ->
GeneratedQuery queryString J.Null