graphql-engine-1.0.0: GraphQL API over Postgres
Safe HaskellSafe-Inferred
LanguageHaskell2010

Hasura.Backends.Postgres.Instances.Transport

Description

Postgres Instances Transport

Defines the MSSQL instance of BackendTransport and how to interact with the database for running queries, mutations, subscriptions, and so on.

Documentation

runPGMutationTransaction :: forall pgKind m. (HasTag ('Postgres pgKind), MonadIO m, MonadBaseControl IO m, MonadError QErr m, MonadQueryLog m, MonadTrace m) => RequestId -> GQLReqUnparsed -> UserInfo -> Logger Hasura -> SourceConfig ('Postgres pgKind) -> ResolvedConnectionTemplate ('Postgres pgKind) -> RootFieldMap (DBStepInfo ('Postgres pgKind)) -> m (DiffTime, RootFieldMap EncJSON) Source #

Orphan instances

(Backend ('Postgres pgKind), PostgresAnnotatedFieldJSON pgKind) => BackendTransport ('Postgres pgKind) Source # 
Instance details

Methods

runDBQuery :: (MonadIO m, MonadBaseControl IO m, MonadError QErr m, MonadQueryLog m, MonadExecutionLog m, MonadTrace m) => RequestId -> GQLReqUnparsed -> RootFieldAlias -> UserInfo -> Logger Hasura -> Maybe (CredentialCache AgentLicenseKey) -> SourceConfig ('Postgres pgKind) -> OnBaseMonad (ExecutionMonad ('Postgres pgKind)) (Maybe (AnyBackend ExecutionStats), EncJSON) -> Maybe (PreparedQuery ('Postgres pgKind)) -> ResolvedConnectionTemplate ('Postgres pgKind) -> m (DiffTime, EncJSON) Source #

runDBMutation :: (MonadIO m, MonadBaseControl IO m, MonadError QErr m, MonadQueryLog m, MonadTrace m) => RequestId -> GQLReqUnparsed -> RootFieldAlias -> UserInfo -> Logger Hasura -> Maybe (CredentialCache AgentLicenseKey) -> SourceConfig ('Postgres pgKind) -> OnBaseMonad (ExecutionMonad ('Postgres pgKind)) EncJSON -> Maybe (PreparedQuery ('Postgres pgKind)) -> ResolvedConnectionTemplate ('Postgres pgKind) -> m (DiffTime, EncJSON) Source #

runDBSubscription :: (MonadIO m, MonadBaseControl IO m) => SourceConfig ('Postgres pgKind) -> MultiplexedQuery ('Postgres pgKind) -> [(CohortId, CohortVariables)] -> ResolvedConnectionTemplate ('Postgres pgKind) -> m (DiffTime, Either QErr [(CohortId, ByteString)]) Source #

runDBStreamingSubscription :: (MonadIO m, MonadBaseControl IO m) => SourceConfig ('Postgres pgKind) -> MultiplexedQuery ('Postgres pgKind) -> [(CohortId, CohortVariables)] -> ResolvedConnectionTemplate ('Postgres pgKind) -> m (DiffTime, Either QErr [(CohortId, ByteString, CursorVariableValues)]) Source #

runDBQueryExplain :: (MonadIO m, MonadError QErr m, MonadBaseControl IO m, MonadTrace m) => Maybe (CredentialCache AgentLicenseKey) -> DBStepInfo ('Postgres pgKind) -> m EncJSON Source #