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graphql-engine/server/src-lib/Hasura/GraphQL/Execute/Action.hs
Antoine Leblanc ba70ca427a server: switch to a sub-backend approach 
GitOrigin-RevId: 660126d5f65620fb58a3ffcbed564e9e35f59938
2021-04-21 21:45:32 +00:00

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module Hasura.GraphQL.Execute.Action
( fetchActionLogResponses
, runActionExecution
, asyncActionsProcessor
, resolveActionExecution
, resolveActionMutationAsync
, resolveAsyncActionQuery
, insertActionTx
, fetchUndeliveredActionEventsTx
, setActionStatusTx
, fetchActionResponseTx
, clearActionDataTx
, module Types
) where
import Hasura.Prelude
import qualified Control.Concurrent.Async.Lifted.Safe as LA
import qualified Data.Aeson as J
import qualified Data.Aeson.Ordered as AO
import qualified Data.ByteString.Lazy as BL
import qualified Data.CaseInsensitive as CI
import qualified Data.Environment as Env
import qualified Data.HashMap.Strict as Map
import qualified Data.HashSet as Set
import qualified Data.IntMap as IntMap
import qualified Data.Text as T
import qualified Database.PG.Query as Q
import qualified Language.GraphQL.Draft.Syntax as G
import qualified Network.HTTP.Client as HTTP
import qualified Network.HTTP.Types as HTTP
import qualified Network.Wreq as Wreq
import Control.Concurrent.Extended (sleep)
import Control.Exception (try)
import Control.Lens
import Control.Monad.Trans.Control (MonadBaseControl)
import Data.Has
import Data.IORef
import Data.Text.Extended
import qualified Hasura.Backends.Postgres.Execute.RemoteJoin as RJ
import qualified Hasura.Backends.Postgres.SQL.DML as S
import qualified Hasura.Backends.Postgres.Translate.Select as RS
import qualified Hasura.GraphQL.Execute.RemoteJoin as RJ
import qualified Hasura.Logging as L
import qualified Hasura.RQL.IR.Select as RS
import qualified Hasura.Tracing as Tracing
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.EncJSON
import Hasura.GraphQL.Execute.Action.Types as Types
import Hasura.GraphQL.Execute.Prepare
import Hasura.GraphQL.Parser
import Hasura.HTTP
import Hasura.Metadata.Class
import Hasura.RQL.DDL.Headers
import Hasura.RQL.DDL.Schema.Cache
import Hasura.RQL.Types
import Hasura.SQL.Types
import Hasura.Server.Utils (mkClientHeadersForward,
mkSetCookieHeaders)
import Hasura.Server.Version (HasVersion)
import Hasura.Session
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)
)
=> ActionExecutionPlan -> m (DiffTime, (EncJSON, Maybe HTTP.ResponseHeaders))
runActionExecution 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, _) <- flip runStateT Set.empty $ RS.traverseAnnSimpleSelect prepareWithoutPlan selectAST
let querySQL = Q.fromBuilder $ toSQL $ RS.mkSQLSelect jsonAggSelect selectResolved
liftEitherM $ runExceptT $ runLazyTx (_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
:: (HasVersion)
=> Env.Environment
-> L.Logger L.Hasura
-> UserInfo
-> AnnActionExecution ('Postgres 'Vanilla) (UnpreparedValue ('Postgres 'Vanilla))
-> ActionExecContext
-> ActionExecution
resolveActionExecution env logger userInfo annAction execContext =
case actionSource of
-- Build client response
ASINoSource -> ActionExecution $ first (AO.toEncJSON . makeActionResponseNoRelations annFields) <$> runWebhook
ASISource _ sourceConfig -> ActionExecution do
(webhookRes, respHeaders) <- runWebhook
let webhookResponseExpression = RS.AEInput $ UVLiteral $
toTxtValue $ ColumnValue (ColumnScalar PGJSONB) $ PGValJSONB $ Q.JSONB $ J.toJSON webhookRes
selectAstUnresolved = processOutputSelectionSet webhookResponseExpression
outputType definitionList annFields stringifyNum
(astResolved, finalPlanningSt) <- flip runStateT initPlanningSt $ RS.traverseAnnSimpleSelect prepareWithPlan selectAstUnresolved
let prepArgs = fmap fst $ IntMap.elems $ withUserVars (_uiSession userInfo) $ _psPrepped finalPlanningSt
(,respHeaders) <$> executeActionInDb sourceConfig astResolved prepArgs
where
AnnActionExecution actionName outputType annFields inputPayload
outputFields definitionList resolvedWebhook confHeaders
forwardClientHeaders stringifyNum timeout actionSource = annAction
ActionExecContext manager reqHeaders sessionVariables = execContext
actionContext = ActionContext actionName
handlerPayload = ActionWebhookPayload actionContext sessionVariables inputPayload
executeActionInDb :: (MonadError QErr m, MonadIO m, MonadBaseControl IO m, Tracing.MonadTrace m)
=> SourceConfig ('Postgres 'Vanilla) -> RS.AnnSimpleSel ('Postgres 'Vanilla) -> [Q.PrepArg] -> m EncJSON
executeActionInDb sourceConfig astResolved prepArgs = do
let (astResolvedWithoutRemoteJoins, maybeRemoteJoins) = RJ.getRemoteJoinsSelect astResolved
jsonAggType = mkJsonAggSelect outputType
liftEitherM $ runExceptT $ runLazyTx (_pscExecCtx sourceConfig) Q.ReadOnly $
case maybeRemoteJoins of
Just remoteJoins ->
let query = Q.fromBuilder $ toSQL $
RS.mkSQLSelect jsonAggType astResolvedWithoutRemoteJoins
in RJ.executeQueryWithRemoteJoins env manager reqHeaders userInfo query prepArgs remoteJoins
Nothing ->
liftTx $ asSingleRowJsonResp (Q.fromBuilder $ toSQL $ RS.mkSQLSelect jsonAggType astResolved) prepArgs
runWebhook :: (HasVersion, MonadIO m, MonadError QErr m, Tracing.MonadTrace m)
=> m (ActionWebhookResponse, HTTP.ResponseHeaders)
runWebhook = flip runReaderT logger $
callWebhook env manager outputType outputFields reqHeaders confHeaders
forwardClientHeaders resolvedWebhook handlerPayload timeout
-- | Build action response from the Webhook JSON response when there are no relationships defined
makeActionResponseNoRelations :: RS.AnnFieldsG b v -> ActionWebhookResponse -> AO.Value
makeActionResponseNoRelations annFields webhookResponse =
let mkResponseObject obj =
AO.object $ flip mapMaybe annFields $ \(fieldName, annField) ->
let fieldText = getFieldNameTxt fieldName
in (fieldText,) <$> case annField of
RS.AFExpression t -> Just $ AO.String t
_ -> AO.toOrdered <$> Map.lookup fieldText (mapKeys G.unName obj)
in case webhookResponse of
AWRArray objs -> AO.array $ map mkResponseObject objs
AWRObject obj -> mkResponseObject obj
{- 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 <source relationship table>)
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) (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 $ AO.toEncJSON $ 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 ->
let inputTableArgument = RS.AETableRow $ Just $ Identifier "response_payload"
in RS.AFComputedField () $ RS.CFSTable jsonAggSelect $
processOutputSelectionSet inputTableArgument 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 "response_payload", PGJSONB)
createdAtColumn = (unsafePGCol "created_at", PGTimeStampTZ)
errorsColumn = (unsafePGCol "errors", PGJSONB)
sessionVarsColumn = (unsafePGCol "session_variables", PGJSONB)
-- TODO (from master):- Avoid using ColumnInfo
mkAnnFldFromPGCol columnInfoArgs =
RS.mkAnnColumnField (mkPGColumnInfo columnInfoArgs) Nothing Nothing
mkPGColumnInfo (column', columnType) =
ColumnInfo column' (G.unsafeMkName $ getPGColTxt column') 0 (ColumnScalar columnType) True Nothing
tableBoolExpression =
let actionIdColumnInfo = ColumnInfo (unsafePGCol "id") $$(G.litName "id")
0 (ColumnScalar PGUUID) False Nothing
actionIdColumnEq = BoolFld $ AVCol 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 $ AVCol sessionVarsColumnInfo [AEQ True sessionVarValue]
-- 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.
in 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 void
. ( HasVersion
, 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)
-> HTTP.Manager
-> Milliseconds
-> m void
asyncActionsProcessor env logger cacheRef httpManager sleepTime = forever $ do
actionCache <- scActions . lastBuiltSchemaCache . fst <$> liftIO (readIORef cacheRef)
let asyncActions = Map.filter ((== ActionMutation ActionAsynchronous) . (^. aiDefinition.adType)) actionCache
if (Map.null asyncActions)
then return ()
else 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
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
eitherRes <- runExceptT $ flip runReaderT logger $
callWebhook env httpManager outputType outputFields reqHeaders confHeaders
forwardClientHeaders webhookUrl
(ActionWebhookPayload actionContext sessionVariables inputPayload)
timeout
resE <- runMetadataStorageT $ setActionStatus actionId $ case eitherRes of
Left e -> AASError e
Right (responsePayload, _) -> AASCompleted $ J.toJSON responsePayload
liftIO $ onLeft resE mempty
callWebhook
:: forall m r.
( HasVersion
, 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
-> m (ActionWebhookResponse, HTTP.ResponseHeaders)
callWebhook env manager outputType outputFields reqHeaders confHeaders
forwardClientHeaders resolvedWebhook actionWebhookPayload timeoutSeconds = do
resolvedConfHeaders <- makeHeadersFromConf env confHeaders
let clientHeaders = if forwardClientHeaders then mkClientHeadersForward reqHeaders else []
contentType = ("Content-Type", "application/json")
-- Using HashMap to avoid duplicate headers between configuration headers
-- and client headers where configuration headers are preferred
hdrs = contentType : (Map.toList . Map.fromList) (resolvedConfHeaders <> clientHeaders)
postPayload = J.toJSON actionWebhookPayload
requestBody = J.encode postPayload
requestBodySize = BL.length requestBody
url = unResolvedWebhook resolvedWebhook
responseTimeout = HTTP.responseTimeoutMicro $ (unTimeout timeoutSeconds) * 1000000
httpResponse <- do
initReq <- liftIO $ HTTP.parseRequest (T.unpack url)
let req = initReq { HTTP.method = "POST"
, HTTP.requestHeaders = addDefaultHeaders hdrs
, HTTP.requestBody = HTTP.RequestBodyLBS requestBody
, HTTP.responseTimeout = responseTimeout
}
Tracing.tracedHttpRequest req \req' ->
liftIO . try $ HTTP.httpLbs req' manager
let requestInfo = ActionRequestInfo url postPayload $
confHeaders <> toHeadersConf clientHeaders
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
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 requestBodySize responseBodySize
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 actionInternalError}
if | HTTP.statusIsSuccessful responseStatus -> do
let expectingArray = isListType outputType
modifyQErr addInternalToErr $ do
webhookResponse <- decodeValue responseValue
case webhookResponse of
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 <-
modifyQErr addInternalToErr $ decodeValue responseValue
let code = maybe Unexpected ActionWebhookCode maybeCode
qErr = QErr [] responseStatus message code Nothing
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
-- Fields not specified in the output type shouldn't be present in the response
let extraFields = filter (not . flip Map.member outputFields) $ Map.keys obj
unless (null extraFields) $ throwUnexpected $
"unexpected fields in webhook response: " <> commaSeparated extraFields
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 ('Postgres 'Vanilla) v
-> GraphQLType
-> [(PGCol, PGScalarType)]
-> RS.AnnFieldsG ('Postgres 'Vanilla) v
-> Bool
-> RS.AnnSimpleSelG ('Postgres 'Vanilla) v
processOutputSelectionSet tableRowInput actionOutputType definitionList annotatedFields =
RS.AnnSelectG annotatedFields selectFrom RS.noTablePermissions RS.noSelectArgs
where
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
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
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