module Hasura.GraphQL.Execute.Action ( fetchActionLogResponses, runActionExecution, asyncActionsProcessor, resolveActionExecution, resolveActionMutationAsync, resolveAsyncActionQuery, insertActionTx, fetchUndeliveredActionEventsTx, setActionStatusTx, fetchActionResponseTx, clearActionDataTx, setProcessingActionLogsToPendingTx, LockedActionIdArray (..), module Types, ) where import Control.Concurrent.Async.Lifted.Safe qualified as LA import Control.Concurrent.Extended (Forever (..), sleep) import Control.Concurrent.STM qualified as STM import Control.Exception (try) import Control.Lens import Control.Monad.Trans.Control (MonadBaseControl) import Data.Aeson qualified as J import Data.Aeson.Ordered qualified as AO import Data.ByteString.Lazy qualified as BL import Data.CaseInsensitive qualified as CI import Data.Environment qualified as Env import Data.Has import Data.HashMap.Strict qualified as Map import Data.IORef import Data.IntMap qualified as IntMap import Data.Set (Set) import Data.TByteString qualified as TBS import Data.Text.Extended import Data.Text.NonEmpty import Data.Vector qualified as Vec import Database.PG.Query qualified as Q import Hasura.Backends.Postgres.Execute.Prepare import Hasura.Backends.Postgres.SQL.DML qualified as S import Hasura.Backends.Postgres.SQL.Types import Hasura.Backends.Postgres.SQL.Value (PGScalarValue (..)) import Hasura.Backends.Postgres.Translate.Column (toTxtValue) import Hasura.Backends.Postgres.Translate.Select (asSingleRowJsonResp) import Hasura.Backends.Postgres.Translate.Select qualified as RS import Hasura.Base.Error import Hasura.EncJSON import Hasura.Eventing.Common import Hasura.GraphQL.Execute.Action.Types as Types import Hasura.GraphQL.Parser import Hasura.GraphQL.Transport.HTTP.Protocol as GH import Hasura.HTTP import Hasura.Logging qualified as L import Hasura.Metadata.Class import Hasura.Prelude import Hasura.RQL.DDL.Headers import Hasura.RQL.DDL.RequestTransform import Hasura.RQL.DDL.Schema.Cache import Hasura.RQL.IR.Select qualified as RQL import Hasura.RQL.IR.Select qualified as RS import Hasura.RQL.Types import Hasura.SQL.Types import Hasura.Server.Utils ( mkClientHeadersForward, mkSetCookieHeaders, ) import Hasura.Session import Hasura.Tracing qualified as Tracing import Language.GraphQL.Draft.Syntax qualified as G import Network.HTTP.Client.Transformable qualified as HTTP import Network.Wreq qualified as Wreq fetchActionLogResponses :: (MonadError QErr m, MonadMetadataStorage (MetadataStorageT m), Foldable t) => t ActionId -> m (ActionLogResponseMap, Bool) fetchActionLogResponses actionIds = do responses <- for (toList actionIds) $ \actionId -> (actionId,) <$> liftEitherM (runMetadataStorageT $ fetchActionResponse actionId) -- An action is said to be completed/processed iff response is captured from webhook or -- in case any exception occured in calling webhook. let isActionComplete ActionLogResponse {..} = isJust _alrResponsePayload || isJust _alrErrors pure (Map.fromList responses, all (isActionComplete . snd) responses) runActionExecution :: ( MonadIO m, MonadBaseControl IO m, MonadError QErr m, Tracing.MonadTrace m, MonadMetadataStorage (MetadataStorageT m) ) => UserInfo -> ActionExecutionPlan -> m (DiffTime, (EncJSON, Maybe HTTP.ResponseHeaders)) runActionExecution userInfo aep = withElapsedTime $ case aep of AEPSync e -> second Just <$> unActionExecution e AEPAsyncQuery (AsyncActionQueryExecutionPlan actionId execution) -> do actionLogResponse <- liftEitherM $ runMetadataStorageT $ fetchActionResponse actionId (,Nothing) <$> case execution of AAQENoRelationships f -> liftEither $ f actionLogResponse AAQEOnSourceDB srcConfig (AsyncActionQuerySourceExecution _ jsonAggSelect f) -> do let selectAST = f actionLogResponse selectResolved <- traverse (prepareWithoutPlan userInfo) selectAST let querySQL = Q.fromBuilder $ toSQL $ RS.mkSQLSelect jsonAggSelect selectResolved liftEitherM $ runExceptT $ runTx (_pscExecCtx srcConfig) Q.ReadOnly $ liftTx $ asSingleRowJsonResp querySQL [] AEPAsyncMutation actionId -> pure $ (,Nothing) $ encJFromJValue $ actionIdToText actionId -- | Synchronously execute webhook handler and resolve response to action "output" resolveActionExecution :: Env.Environment -> L.Logger L.Hasura -> UserInfo -> AnnActionExecution ('Postgres 'Vanilla) Void (UnpreparedValue ('Postgres 'Vanilla)) -> ActionExecContext -> Maybe GQLQueryText -> ActionExecution resolveActionExecution env logger userInfo AnnActionExecution {..} ActionExecContext {..} gqlQueryText = case _aaeSource of -- Build client response ASINoSource -> ActionExecution $ first (encJFromOrderedValue . makeActionResponseNoRelations _aaeFields) <$> runWebhook ASISource _ sourceConfig -> ActionExecution do (webhookRes, respHeaders) <- runWebhook let webhookResponse = makeActionResponseNoRelations _aaeFields webhookRes webhookResponseExpression = RS.AEInput $ UVLiteral $ toTxtValue $ ColumnValue (ColumnScalar PGJSONB) $ PGValJSONB $ Q.JSONB $ J.toJSON webhookRes selectAstUnresolved = processOutputSelectionSet webhookResponseExpression _aaeOutputType _aaeDefinitionList _aaeFields _aaeStrfyNum (RS.AnnSelectG {..}, finalPlanningSt) <- flip runStateT initPlanningSt $ traverse (prepareWithPlan userInfo) selectAstUnresolved let prepArgs = fmap fst $ IntMap.elems $ withUserVars (_uiSession userInfo) $ _psPrepped finalPlanningSt astRelations = RS.AnnSelectG {_asnFields = filter (isRelationField . snd) _asnFields, ..} maybeRelationData <- if null $ RS._asnFields astRelations then pure Nothing else AO.decode . encJToBS <$> executeActionInDb sourceConfig astRelations prepArgs let mergeNoRelAndRelation noRelResponse relData = case (noRelResponse, relData) of (AO.Object nRelObj, AO.Object relObj) -> let lookupField (fieldName, fieldType) = let fName = getFieldNameTxt fieldName in (fName,) <$> if isRelationField fieldType then AO.lookup fName relObj else AO.lookup fName nRelObj in pure $ AO.Object $ AO.fromList $ mapMaybe lookupField _asnFields (AO.Array nRelArr, AO.Array relArr) -> AO.Array <$> Vec.zipWithM mergeNoRelAndRelation nRelArr relArr _ -> throw500 "Type mismatch in action relation response" finalResponse <- maybe (pure webhookResponse) (mergeNoRelAndRelation webhookResponse) maybeRelationData pure (encJFromOrderedValue finalResponse, respHeaders) where isRelationField = \case RS.AFObjectRelation _ -> True RS.AFArrayRelation _ -> True _ -> False handlerPayload = ActionWebhookPayload (ActionContext _aaeName) _aecSessionVariables _aaePayload gqlQueryText executeActionInDb :: (MonadError QErr m, MonadIO m, MonadBaseControl IO m) => SourceConfig ('Postgres 'Vanilla) -> RS.AnnSimpleSelect ('Postgres 'Vanilla) -> [Q.PrepArg] -> m EncJSON executeActionInDb sourceConfig astResolved prepArgs = do let jsonAggType = mkJsonAggSelect _aaeOutputType liftEitherM $ runExceptT $ runTx (_pscExecCtx sourceConfig) Q.ReadOnly $ liftTx $ asSingleRowJsonResp (Q.fromBuilder $ toSQL $ RS.mkSQLSelect jsonAggType astResolved) prepArgs runWebhook :: (MonadIO m, MonadError QErr m, Tracing.MonadTrace m) => m (ActionWebhookResponse, HTTP.ResponseHeaders) runWebhook = flip runReaderT logger $ callWebhook env _aecManager _aaeOutputType _aaeOutputFields _aecHeaders _aaeHeaders _aaeForwardClientHeaders _aaeWebhook handlerPayload _aaeTimeOut _aaeRequestTransform -- | Build action response from the Webhook JSON response when there are no relationships defined makeActionResponseNoRelations :: forall b r v. RS.ActionFieldsG b r v -> ActionWebhookResponse -> AO.Value makeActionResponseNoRelations annFields webhookResponse = let mkResponseObject :: RS.ActionFieldsG b r v -> HashMap Text J.Value -> AO.Value mkResponseObject fields obj = AO.object $ flip mapMaybe fields $ \(fieldName, annField) -> let fieldText = getFieldNameTxt fieldName in (fieldText,) <$> case annField of RS.ACFExpression t -> Just $ AO.String t RS.ACFScalar fname -> AO.toOrdered <$> Map.lookup (G.unName fname) obj RS.ACFNestedObject _ nestedFields -> do let mkValue :: J.Value -> Maybe AO.Value mkValue = \case J.Object o -> Just $ mkResponseObject nestedFields o J.Array a -> Just $ AO.array $ mapMaybe mkValue $ toList a _ -> Nothing Map.lookup fieldText obj >>= mkValue _ -> AO.toOrdered <$> Map.lookup fieldText obj in -- NOTE (Sam): This case would still not allow for aliased fields to be -- a part of the response. Also, seeing that none of the other `annField` -- types would be caught in the example, I've chosen to leave it as it is. case webhookResponse of AWRArray objs -> AO.array $ map (mkResponseObject annFields) (mapKeys G.unName <$> objs) AWRObject obj -> mkResponseObject annFields (mapKeys G.unName obj) AWRNull -> AO.Null {- Note: [Async action architecture] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In async actions, acquiring the action result is deferred. The async action mutation is made to initiate the action which returns an UUID. The UUID is used to query/subsribe for actions response. On mutation, the server makes an action log record in the metadata storage with request headers and input arguments. The `asyncActionsProcessor` background thread processes the async actions by executing the webhook handler and writing back the response payload or errors if any in the metadata storage. When an async action query/subscription is made, the server fetches the relavent data from the metadata storage. See Note [Resolving async action query] below. -} -- | Resolve asynchronous action mutation which returns only the action uuid resolveActionMutationAsync :: (MonadMetadataStorage m) => AnnActionMutationAsync -> [HTTP.Header] -> SessionVariables -> m ActionId resolveActionMutationAsync annAction reqHeaders sessionVariables = insertAction actionName sessionVariables reqHeaders inputArgs where AnnActionMutationAsync actionName _ inputArgs = annAction {- Note: [Resolving async action query] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Resolving async action query happens in two steps; 1. Fetching webhook response from the metadata storage: In this step, using @'fetchActionResponse' method of @'MonadMetadataStorage' type class, we fetch the webhook response of any async action mutation (See Note [Async action architecture] for more) 2. Generating client response: Generation of appropriate client response happens in two ways based on the availibility of relationships on action output object type. a. With relationships:- If there are any relationships defined to tables in a source, we need to join the rows from the tables. So, we'll generate a SELECT SQL statement from a table built virtually from action webhook response fetched in the Step 1 and joining it with appropriate tables. Then, we execute this SQL in the source database. SELECT .... FROM pg_catalog.jsonb_to_recordset('action webhook response') JOIN .... (SELECT ... FROM ) b. Without relationships:- In this case, we'll build the response purely in Haskell code from the action webhook response fetched in the Step 1. -} -- TODO: Add tracing here? Avoided now because currently the function is pure -- | See Note: [Resolving async action query] resolveAsyncActionQuery :: UserInfo -> AnnActionAsyncQuery ('Postgres 'Vanilla) Void (UnpreparedValue ('Postgres 'Vanilla)) -> AsyncActionQueryExecution (UnpreparedValue ('Postgres 'Vanilla)) resolveAsyncActionQuery userInfo annAction = case actionSource of ASINoSource -> AAQENoRelationships \actionLogResponse -> runExcept do let ActionLogResponse {..} = actionLogResponse resolvedFields <- for asyncFields $ \(fieldName, fld) -> do let fieldText = getFieldNameTxt fieldName (fieldText,) <$> case fld of AsyncTypename t -> pure $ AO.String t AsyncOutput annFields -> fromMaybe AO.Null <$> forM _alrResponsePayload \response -> makeActionResponseNoRelations annFields <$> decodeValue response AsyncId -> pure $ AO.String $ actionIdToText actionId AsyncCreatedAt -> pure $ AO.toOrdered $ J.toJSON _alrCreatedAt AsyncErrors -> pure $ AO.toOrdered $ J.toJSON _alrErrors pure $ encJFromOrderedValue $ AO.object resolvedFields ASISource sourceName sourceConfig -> let jsonAggSelect = mkJsonAggSelect outputType in AAQEOnSourceDB sourceConfig $ AsyncActionQuerySourceExecution sourceName jsonAggSelect $ \actionLogResponse -> let annotatedFields = asyncFields <&> second \case AsyncTypename t -> RS.AFExpression t AsyncOutput annFields -> RS.AFComputedField () (ComputedFieldName $$(nonEmptyText "__action_computed_field")) $ RS.CFSTable jsonAggSelect $ processOutputSelectionSet RS.AEActionResponsePayload outputType definitionList annFields stringifyNumerics AsyncId -> mkAnnFldFromPGCol idColumn AsyncCreatedAt -> mkAnnFldFromPGCol createdAtColumn AsyncErrors -> mkAnnFldFromPGCol errorsColumn jsonbToRecordSet = QualifiedObject "pg_catalog" $ FunctionName "jsonb_to_recordset" actionLogInput = UVParameter Nothing $ ColumnValue (ColumnScalar PGJSONB) $ PGValJSONB $ Q.JSONB $ J.toJSON [actionLogResponse] functionArgs = RS.FunctionArgsExp [RS.AEInput actionLogInput] mempty tableFromExp = RS.FromFunction jsonbToRecordSet functionArgs $ Just [idColumn, createdAtColumn, responsePayloadColumn, errorsColumn, sessionVarsColumn] tableArguments = RS.noSelectArgs { RS._saWhere = Just tableBoolExpression } tablePermissions = RS.TablePerm annBoolExpTrue Nothing in RS.AnnSelectG annotatedFields tableFromExp tablePermissions tableArguments stringifyNumerics where AnnActionAsyncQuery _ actionId outputType asyncFields definitionList stringifyNumerics _ actionSource = annAction idColumn = (unsafePGCol "id", PGUUID) responsePayloadColumn = (unsafePGCol RS.actionResponsePayloadColumn, PGJSONB) createdAtColumn = (unsafePGCol "created_at", PGTimeStampTZ) errorsColumn = (unsafePGCol "errors", PGJSONB) sessionVarsColumn = (unsafePGCol "session_variables", PGJSONB) mkAnnFldFromPGCol (column', columnType) = RS.mkAnnColumnField column' (ColumnScalar columnType) Nothing Nothing -- TODO (from master):- Avoid using ColumnInfo mkPGColumnInfo (column', columnType) = ColumnInfo { pgiColumn = column', pgiName = G.unsafeMkName $ getPGColTxt column', pgiPosition = 0, pgiType = ColumnScalar columnType, pgiIsNullable = True, pgiDescription = Nothing, pgiMutability = ColumnMutability False False } tableBoolExpression = let actionIdColumnInfo = ColumnInfo { pgiColumn = unsafePGCol "id", pgiName = $$(G.litName "id"), pgiPosition = 0, pgiType = ColumnScalar PGUUID, pgiIsNullable = False, pgiDescription = Nothing, pgiMutability = ColumnMutability False False } actionIdColumnEq = BoolFld $ AVColumn actionIdColumnInfo [AEQ True $ UVLiteral $ S.SELit $ actionIdToText actionId] sessionVarsColumnInfo = mkPGColumnInfo sessionVarsColumn sessionVarValue = UVParameter Nothing $ ColumnValue (ColumnScalar PGJSONB) $ PGValJSONB $ Q.JSONB $ J.toJSON $ _uiSession userInfo sessionVarsColumnEq = BoolFld $ AVColumn sessionVarsColumnInfo [AEQ True sessionVarValue] in -- For non-admin roles, accessing an async action's response should be allowed only for the user -- who initiated the action through mutation. The action's response is accessible for a query/subscription -- only when it's session variables are equal to that of action's. if (adminRoleName == (_uiRole userInfo)) then actionIdColumnEq else BoolAnd [actionIdColumnEq, sessionVarsColumnEq] -- | Process async actions from hdb_catalog.hdb_action_log table. This functions is executed in a background thread. -- See Note [Async action architecture] above asyncActionsProcessor :: forall m. ( MonadIO m, MonadBaseControl IO m, LA.Forall (LA.Pure m), Tracing.HasReporter m, MonadMetadataStorage (MetadataStorageT m) ) => Env.Environment -> L.Logger L.Hasura -> IORef (RebuildableSchemaCache, SchemaCacheVer) -> STM.TVar (Set LockedActionEventId) -> HTTP.Manager -> Milliseconds -> Maybe GH.GQLQueryText -> m (Forever m) asyncActionsProcessor env logger cacheRef lockedActionEvents httpManager sleepTime gqlQueryText = return $ Forever () $ const $ do actionCache <- scActions . lastBuiltSchemaCache . fst <$> liftIO (readIORef cacheRef) let asyncActions = Map.filter ((== ActionMutation ActionAsynchronous) . (^. aiDefinition . adType)) actionCache unless (Map.null asyncActions) $ do -- fetch undelivered action events only when there's at least -- one async action present in the schema cache asyncInvocationsE <- runMetadataStorageT fetchUndeliveredActionEvents asyncInvocations <- liftIO $ onLeft asyncInvocationsE mempty -- save the actions that are currently fetched from the DB to -- be processed in a TVar (Set LockedActionEventId) and when -- the action is processed we remove it from the set. This set -- is maintained because on shutdown of the graphql-engine, we -- would like to wait for a certain time (see `--graceful-shutdown-time`) -- during which to complete all the in-flight actions. So, when this -- locked action events set TVar is empty, it will mean that there are -- no events that are in the 'processing' state saveLockedEvents (map (EventId . actionIdToText . _aliId) asyncInvocations) lockedActionEvents LA.mapConcurrently_ (callHandler actionCache) asyncInvocations liftIO $ sleep $ milliseconds sleepTime where callHandler :: ActionCache -> ActionLogItem -> m () callHandler actionCache actionLogItem = Tracing.runTraceT "async actions processor" do let ActionLogItem actionId actionName reqHeaders sessionVariables inputPayload = actionLogItem case Map.lookup actionName actionCache of Nothing -> return () Just actionInfo -> do let definition = _aiDefinition actionInfo outputFields = getActionOutputFields $ snd $ _aiOutputObject actionInfo webhookUrl = _adHandler definition forwardClientHeaders = _adForwardClientHeaders definition confHeaders = _adHeaders definition timeout = _adTimeout definition outputType = _adOutputType definition actionContext = ActionContext actionName metadataTransform = _adRequestTransform definition eitherRes <- runExceptT $ flip runReaderT logger $ callWebhook env httpManager outputType outputFields reqHeaders confHeaders forwardClientHeaders webhookUrl (ActionWebhookPayload actionContext sessionVariables inputPayload gqlQueryText) timeout metadataTransform resE <- runMetadataStorageT $ setActionStatus actionId $ case eitherRes of Left e -> AASError e Right (responsePayload, _) -> AASCompleted $ J.toJSON responsePayload removeEventFromLockedEvents (EventId (actionIdToText actionId)) lockedActionEvents liftIO $ onLeft resE mempty callWebhook :: forall m r. ( MonadIO m, MonadError QErr m, Tracing.MonadTrace m, MonadReader r m, Has (L.Logger L.Hasura) r ) => Env.Environment -> HTTP.Manager -> GraphQLType -> ActionOutputFields -> [HTTP.Header] -> [HeaderConf] -> Bool -> ResolvedWebhook -> ActionWebhookPayload -> Timeout -> Maybe MetadataTransform -> m (ActionWebhookResponse, HTTP.ResponseHeaders) callWebhook env manager outputType outputFields reqHeaders confHeaders forwardClientHeaders resolvedWebhook actionWebhookPayload timeoutSeconds metadataTransform = do resolvedConfHeaders <- makeHeadersFromConf env confHeaders let clientHeaders = if forwardClientHeaders then mkClientHeadersForward reqHeaders else mempty -- Using HashMap to avoid duplicate headers between configuration headers -- and client headers where configuration headers are preferred hdrs = ("Content-Type", "application/json") : (Map.toList . Map.fromList) (resolvedConfHeaders <> clientHeaders) postPayload = J.toJSON actionWebhookPayload requestBody = J.encode postPayload requestBodySize = BL.length requestBody responseTimeout = HTTP.responseTimeoutMicro $ (unTimeout timeoutSeconds) * 1000000 url = unResolvedWebhook resolvedWebhook sessionVars = Just $ _awpSessionVariables actionWebhookPayload initReq <- liftIO $ HTTP.mkRequestThrow url let req = initReq & set HTTP.method "POST" & set HTTP.headers hdrs & set HTTP.body (Just requestBody) & set HTTP.timeout responseTimeout (transformedReq, transformedReqSize) <- case metadataTransform of Nothing -> pure (Nothing, Nothing) Just transform' -> case applyRequestTransform url (mkRequestTransform transform') req sessionVars of Left err -> do -- Log The Transformation Error logger :: L.Logger L.Hasura <- asks getter L.unLogger logger $ L.UnstructuredLog L.LevelError (TBS.fromLBS $ J.encode err) -- Throw an exception with the Transformation Error throw500WithDetail "Request Transformation Failed" $ J.toJSON err Right transformedReq -> let transformedPayloadSize = HTTP.getReqSize transformedReq in pure (Just transformedReq, Just transformedPayloadSize) let actualReq = fromMaybe req transformedReq httpResponse <- Tracing.tracedHttpRequest actualReq $ \request -> liftIO . try $ HTTP.performRequest request manager let requestInfo = ActionRequestInfo url postPayload (confHeaders <> toHeadersConf clientHeaders) transformedReq case httpResponse of Left e -> throw500WithDetail "http exception when calling webhook" $ J.toJSON $ ActionInternalError (J.toJSON $ HttpException e) requestInfo Nothing Right responseWreq -> do let responseBody = responseWreq ^. Wreq.responseBody responseBodySize = BL.length responseBody actionName = _acName $ _awpAction actionWebhookPayload responseStatus = responseWreq ^. Wreq.responseStatus mkResponseInfo respBody = ActionResponseInfo (HTTP.statusCode responseStatus) respBody $ toHeadersConf $ responseWreq ^. Wreq.responseHeaders -- log the request and response to/from the action handler logger :: (L.Logger L.Hasura) <- asks getter L.unLogger logger $ ActionHandlerLog req transformedReq requestBodySize transformedReqSize responseBodySize actionName case J.eitherDecode responseBody of Left e -> do let responseInfo = mkResponseInfo $ J.String $ bsToTxt $ BL.toStrict responseBody throw500WithDetail "not a valid json response from webhook" $ J.toJSON $ ActionInternalError (J.toJSON $ "invalid json: " <> e) requestInfo $ Just responseInfo Right responseValue -> do let responseInfo = mkResponseInfo responseValue addInternalToErr e = let actionInternalError = J.toJSON $ ActionInternalError (J.String "unexpected response") requestInfo $ Just responseInfo in e {qeInternal = Just $ ExtraInternal actionInternalError} if | HTTP.statusIsSuccessful responseStatus -> do let expectingArray = isListType outputType expectingNull = isNullableType outputType modifyQErr addInternalToErr $ do webhookResponse <- decodeValue responseValue case webhookResponse of AWRNull -> do unless expectingNull $ if expectingArray then throwUnexpected "expecting array for action webhook response but got null" else throwUnexpected "expecting object for action webhook response but got null" validateResponseObject Map.empty AWRArray objs -> do unless expectingArray $ throwUnexpected "expecting object for action webhook response but got array" mapM_ validateResponseObject objs AWRObject obj -> do when expectingArray $ throwUnexpected "expecting array for action webhook response but got object" validateResponseObject obj pure (webhookResponse, mkSetCookieHeaders responseWreq) | HTTP.statusIsClientError responseStatus -> do ActionWebhookErrorResponse message maybeCode maybeExtensions <- modifyQErr addInternalToErr $ decodeValue responseValue let code = maybe Unexpected ActionWebhookCode maybeCode qErr = QErr [] responseStatus message code (ExtraExtensions <$> maybeExtensions) throwError qErr | otherwise -> do let err = J.toJSON $ "expecting 2xx or 4xx status code, but found " ++ show (HTTP.statusCode responseStatus) throw500WithDetail "internal error" $ J.toJSON $ ActionInternalError err requestInfo $ Just responseInfo where throwUnexpected = throw400 Unexpected -- Webhook response object should conform to action output fields validateResponseObject obj = do -- Note: Fields not specified in the output are ignored void $ flip Map.traverseWithKey outputFields $ \fieldName fieldTy -> -- When field is non-nullable, it has to present in the response with no null value unless (G.isNullable fieldTy) $ case Map.lookup fieldName obj of Nothing -> throwUnexpected $ "field " <> fieldName <<> " expected in webhook response, but not found" Just v -> when (v == J.Null) $ throwUnexpected $ "expecting not null value for field " <>> fieldName processOutputSelectionSet :: RS.ArgumentExp v -> GraphQLType -> [(PGCol, PGScalarType)] -> RS.ActionFieldsG ('Postgres 'Vanilla) r v -> Bool -> RS.AnnSimpleSelectG ('Postgres 'Vanilla) r v processOutputSelectionSet tableRowInput actionOutputType definitionList actionFields = RS.AnnSelectG annotatedFields selectFrom RS.noTablePermissions RS.noSelectArgs where annotatedFields = fmap actionFieldToAnnField <$> actionFields jsonbToPostgresRecordFunction = QualifiedObject "pg_catalog" $ FunctionName $ if isListType actionOutputType then "jsonb_to_recordset" -- Multirow array response else "jsonb_to_record" -- Single object response functionArgs = RS.FunctionArgsExp [tableRowInput] mempty selectFrom = RS.FromFunction jsonbToPostgresRecordFunction functionArgs $ Just definitionList actionFieldToAnnField :: RS.ActionFieldG ('Postgres 'Vanilla) r v -> RS.AnnFieldG ('Postgres 'Vanilla) r v actionFieldToAnnField = \case RS.ACFScalar asf -> RQL.mkAnnColumnField (unsafePGCol $ toTxt asf) (ColumnScalar PGJSON) Nothing Nothing RS.ACFObjectRelation ors -> RS.AFObjectRelation ors RS.ACFArrayRelation as -> RS.AFArrayRelation as RS.ACFExpression txt -> RS.AFExpression txt RS.ACFNestedObject fieldName _ -> RQL.mkAnnColumnField (unsafePGCol $ toTxt fieldName) (ColumnScalar PGJSON) Nothing Nothing mkJsonAggSelect :: GraphQLType -> JsonAggSelect mkJsonAggSelect = bool JASSingleObject JASMultipleRows . isListType insertActionTx :: ActionName -> SessionVariables -> [HTTP.Header] -> J.Value -> Q.TxE QErr ActionId insertActionTx actionName sessionVariables httpHeaders inputArgsPayload = runIdentity . Q.getRow <$> Q.withQE defaultTxErrorHandler [Q.sql| INSERT INTO "hdb_catalog"."hdb_action_log" ("action_name", "session_variables", "request_headers", "input_payload", "status") VALUES ($1, $2, $3, $4, $5) RETURNING "id" |] ( actionName, Q.AltJ sessionVariables, Q.AltJ $ toHeadersMap httpHeaders, Q.AltJ inputArgsPayload, "created" :: Text ) False where toHeadersMap = Map.fromList . map ((bsToTxt . CI.original) *** bsToTxt) fetchUndeliveredActionEventsTx :: Q.TxE QErr [ActionLogItem] fetchUndeliveredActionEventsTx = map mapEvent <$> Q.listQE defaultTxErrorHandler [Q.sql| update hdb_catalog.hdb_action_log set status = 'processing' where id in ( select id from hdb_catalog.hdb_action_log where status = 'created' for update skip locked limit 10 ) returning id, action_name, request_headers::json, session_variables::json, input_payload::json |] () False where mapEvent ( actionId, actionName, Q.AltJ headersMap, Q.AltJ sessionVariables, Q.AltJ inputPayload ) = ActionLogItem actionId actionName (fromHeadersMap headersMap) sessionVariables inputPayload fromHeadersMap = map ((CI.mk . txtToBs) *** txtToBs) . Map.toList setActionStatusTx :: ActionId -> AsyncActionStatus -> Q.TxE QErr () setActionStatusTx actionId = \case AASCompleted responsePayload -> Q.unitQE defaultTxErrorHandler [Q.sql| update hdb_catalog.hdb_action_log set response_payload = $1, status = 'completed' where id = $2 |] (Q.AltJ responsePayload, actionId) False AASError qerr -> Q.unitQE defaultTxErrorHandler [Q.sql| update hdb_catalog.hdb_action_log set errors = $1, status = 'error' where id = $2 |] (Q.AltJ qerr, actionId) False fetchActionResponseTx :: ActionId -> Q.TxE QErr ActionLogResponse fetchActionResponseTx actionId = do (ca, rp, errs, Q.AltJ sessVars) <- Q.getRow <$> Q.withQE defaultTxErrorHandler [Q.sql| SELECT created_at, response_payload::json, errors::json, session_variables::json FROM hdb_catalog.hdb_action_log WHERE id = $1 |] (Identity actionId) True pure $ ActionLogResponse actionId ca (Q.getAltJ <$> rp) (Q.getAltJ <$> errs) sessVars clearActionDataTx :: ActionName -> Q.TxE QErr () clearActionDataTx actionName = Q.unitQE defaultTxErrorHandler [Q.sql| DELETE FROM hdb_catalog.hdb_action_log WHERE action_name = $1 |] (Identity actionName) True setProcessingActionLogsToPendingTx :: LockedActionIdArray -> Q.TxE QErr () setProcessingActionLogsToPendingTx lockedActions = Q.unitQE defaultTxErrorHandler [Q.sql| UPDATE hdb_catalog.hdb_action_log SET status = 'created' WHERE status = 'processing' AND id = ANY($1::uuid[]) |] (Identity lockedActions) False