Safe Haskell	None
Language	Haskell2010

Hasura.Backends.MSSQL.Connection

Contents

Orphan instances
Orphan instances

Description

MSSQL Connection

This module handles the connection against an MS SQL Server. It defines the connection string, connection pool, default settings, and conversion functions between MSSQL and graphql-engine.

Synopsis

class MonadError QErr m => MonadMSSQLTx m where
- liftMSSQLTx :: TxE QErr a -> m a
newtype MSSQLConnectionString = MSSQLConnectionString {
- unMSSQLConnectionString :: Text
}
data InputConnectionString
- = RawString ConnectionString
- | FromEnvironment Text
data MSSQLPoolSettings = MSSQLPoolSettings {
- _mpsMaxConnections :: Int
- _mpsIdleTimeout :: Int
}
defaultMSSQLPoolSettings :: MSSQLPoolSettings
data MSSQLConnectionInfo = MSSQLConnectionInfo {
- _mciConnectionString :: InputConnectionString
- _mciPoolSettings :: MSSQLPoolSettings
}
data MSSQLConnConfiguration = MSSQLConnConfiguration {
- _mccConnectionInfo :: MSSQLConnectionInfo
- _mccReadReplicas :: Maybe (NonEmpty MSSQLConnectionInfo)
}
createMSSQLPool :: MonadIO m => QErrM m => MSSQLConnectionInfo -> Environment -> m (ConnectionString, MSSQLPool)
resolveInputConnectionString :: QErrM m => Environment -> InputConnectionString -> m ConnectionString
getEnv :: QErrM m => Environment -> Text -> m Text
type MSSQLRunTx = forall m a. (MonadIO m, MonadBaseControl IO m) => TxET QErr m a -> ExceptT QErr m a
data MSSQLExecCtx = MSSQLExecCtx {
- mssqlRunReadOnly :: MSSQLRunTx
- mssqlRunReadWrite :: MSSQLRunTx
- mssqlDestroyConn :: IO ()
}
mkMSSQLExecCtx :: MSSQLPool -> MSSQLExecCtx
data MSSQLSourceConfig = MSSQLSourceConfig {
- _mscConnectionString :: ConnectionString
- _mscExecCtx :: MSSQLExecCtx
}
odbcValueToJValue :: Value -> Value
runMSSQLSourceReadTx :: (MonadIO m, MonadBaseControl IO m) => MSSQLSourceConfig -> TxET QErr m a -> m (Either QErr a)
runMSSQLSourceWriteTx :: (MonadIO m, MonadBaseControl IO m) => MSSQLSourceConfig -> TxET QErr m a -> m (Either QErr a)

Documentation

class MonadError QErr m => MonadMSSQLTx m where Source #

Methods

liftMSSQLTx :: TxE QErr a -> m a Source #

Instances

Instances details

MonadMSSQLTx m => MonadMSSQLTx (ReaderT s m) Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods liftMSSQLTx :: TxE QErr a -> ReaderT s m a Source #
MonadMSSQLTx m => MonadMSSQLTx (StateT s m) Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods liftMSSQLTx :: TxE QErr a -> StateT s m a Source #
(Monoid w, MonadMSSQLTx m) => MonadMSSQLTx (WriterT w m) Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods liftMSSQLTx :: TxE QErr a -> WriterT w m a Source #
MonadIO m => MonadMSSQLTx (TxET QErr m) Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods liftMSSQLTx :: TxE QErr a -> TxET QErr m a Source #

newtype MSSQLConnectionString Source #

ODBC connection string for MSSQL server

Constructors

MSSQLConnectionString
Fields unMSSQLConnectionString :: Text

Orphan instances

data InputConnectionString Source #

Constructors

RawString ConnectionString
FromEnvironment Text

data MSSQLPoolSettings Source #

Constructors

MSSQLPoolSettings
Fields _mpsMaxConnections :: Int _mpsIdleTimeout :: Int

defaultMSSQLPoolSettings :: MSSQLPoolSettings Source #

data MSSQLConnectionInfo Source #

Constructors

MSSQLConnectionInfo
Fields _mciConnectionString :: InputConnectionString _mciPoolSettings :: MSSQLPoolSettings

data MSSQLConnConfiguration Source #

Constructors

MSSQLConnConfiguration
Fields _mccConnectionInfo :: MSSQLConnectionInfo _mccReadReplicas :: Maybe (NonEmpty MSSQLConnectionInfo)

Instances

Instances details

Eq MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods (==) :: MSSQLConnConfiguration -> MSSQLConnConfiguration -> Bool # (/=) :: MSSQLConnConfiguration -> MSSQLConnConfiguration -> Bool #
Show MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods showsPrec :: Int -> MSSQLConnConfiguration -> ShowS # show :: MSSQLConnConfiguration -> String # showList :: [MSSQLConnConfiguration] -> ShowS #
Generic MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Associated Types type Rep MSSQLConnConfiguration :: Type -> Type # Methods from :: MSSQLConnConfiguration -> Rep MSSQLConnConfiguration x # to :: Rep MSSQLConnConfiguration x -> MSSQLConnConfiguration #
NFData MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods rnf :: MSSQLConnConfiguration -> () #
HasCodec MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods codec :: JSONCodec MSSQLConnConfiguration listCodecForStringCompatibility :: JSONCodec [MSSQLConnConfiguration]
Hashable MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods hashWithSalt :: Int -> MSSQLConnConfiguration -> Int hash :: MSSQLConnConfiguration -> Int
FromJSON MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods parseJSON :: Value -> Parser MSSQLConnConfiguration parseJSONList :: Value -> Parser [MSSQLConnConfiguration]
ToJSON MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods toJSON :: MSSQLConnConfiguration -> Value toEncoding :: MSSQLConnConfiguration -> Encoding toJSONList :: [MSSQLConnConfiguration] -> Value toEncodingList :: [MSSQLConnConfiguration] -> Encoding
Cacheable MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods unchanged :: Accesses -> MSSQLConnConfiguration -> MSSQLConnConfiguration -> Bool Source #
type Rep MSSQLConnConfiguration Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection type Rep MSSQLConnConfiguration

createMSSQLPool :: MonadIO m => QErrM m => MSSQLConnectionInfo -> Environment -> m (ConnectionString, MSSQLPool) Source #

resolveInputConnectionString :: QErrM m => Environment -> InputConnectionString -> m ConnectionString Source #

getEnv :: QErrM m => Environment -> Text -> m Text Source #

type MSSQLRunTx = forall m a. (MonadIO m, MonadBaseControl IO m) => TxET QErr m a -> ExceptT QErr m a Source #

data MSSQLExecCtx Source #

Execution Context required to execute MSSQL transactions

Constructors

MSSQLExecCtx
Fields mssqlRunReadOnly :: MSSQLRunTx A function that runs read-only queries mssqlRunReadWrite :: MSSQLRunTx A function that runs read-write queries; run in a transaction mssqlDestroyConn :: IO () Destroys connection pools

mkMSSQLExecCtx :: MSSQLPool -> MSSQLExecCtx Source #

Creates a MSSQL execution context for a single primary pool

data MSSQLSourceConfig Source #

Constructors

MSSQLSourceConfig
Fields _mscConnectionString :: ConnectionString _mscExecCtx :: MSSQLExecCtx

Instances

Instances details

Eq MSSQLSourceConfig Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods (==) :: MSSQLSourceConfig -> MSSQLSourceConfig -> Bool # (/=) :: MSSQLSourceConfig -> MSSQLSourceConfig -> Bool #
Show MSSQLSourceConfig Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods showsPrec :: Int -> MSSQLSourceConfig -> ShowS # show :: MSSQLSourceConfig -> String # showList :: [MSSQLSourceConfig] -> ShowS #
Generic MSSQLSourceConfig Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Associated Types type Rep MSSQLSourceConfig :: Type -> Type # Methods from :: MSSQLSourceConfig -> Rep MSSQLSourceConfig x # to :: Rep MSSQLSourceConfig x -> MSSQLSourceConfig #
ToJSON MSSQLSourceConfig Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods toJSON :: MSSQLSourceConfig -> Value toEncoding :: MSSQLSourceConfig -> Encoding toJSONList :: [MSSQLSourceConfig] -> Value toEncodingList :: [MSSQLSourceConfig] -> Encoding
Cacheable MSSQLSourceConfig Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods unchanged :: Accesses -> MSSQLSourceConfig -> MSSQLSourceConfig -> Bool Source #
type Rep MSSQLSourceConfig Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection type Rep MSSQLSourceConfig = D1 ('MetaData "MSSQLSourceConfig" "Hasura.Backends.MSSQL.Connection" "graphql-engine-1.0.0-inplace" 'False) (C1 ('MetaCons "MSSQLSourceConfig" 'PrefixI 'True) (S1 ('MetaSel ('Just "_mscConnectionString") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 ConnectionString) :*: S1 ('MetaSel ('Just "_mscExecCtx") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 MSSQLExecCtx)))

odbcValueToJValue :: Value -> Value Source #

runMSSQLSourceReadTx :: (MonadIO m, MonadBaseControl IO m) => MSSQLSourceConfig -> TxET QErr m a -> m (Either QErr a) Source #

runMSSQLSourceWriteTx :: (MonadIO m, MonadBaseControl IO m) => MSSQLSourceConfig -> TxET QErr m a -> m (Either QErr a) Source #

Orphan instances

NFData ConnectionString Source #
Instance details Methods rnf :: ConnectionString -> () #
Hashable ConnectionString Source #
Instance details Methods hashWithSalt :: Int -> ConnectionString -> Int hash :: ConnectionString -> Int
Cacheable ConnectionString Source #
Instance details Methods unchanged :: Accesses -> ConnectionString -> ConnectionString -> Bool Source #