Hoogle Search

Within LTS Haskell 24.51 (ghc-9.10.3)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. pathParamMaybe :: Parsable a => Text -> ActionM (Maybe a)

   scotty	Web.Scotty

   Look up a path parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions. In particular, route pattern matching will not continue, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

2. queryParamMaybe :: Parsable a => Text -> ActionM (Maybe a)

   scotty	Web.Scotty

   Look up a query parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

3. captureParamMaybe :: forall a (m :: Type -> Type) . (Parsable a, Monad m) => Text -> ActionT m (Maybe a)

   scotty	Web.Scotty.Trans

   Look up a capture parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions. In particular, route pattern matching will not continue, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

4. formParamMaybe :: forall (m :: Type -> Type) a . (MonadUnliftIO m, Parsable a) => Text -> ActionT m (Maybe a)

   scotty	Web.Scotty.Trans

   Look up a form parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

5. pathParamMaybe :: forall a (m :: Type -> Type) . (Parsable a, Monad m) => Text -> ActionT m (Maybe a)

   scotty	Web.Scotty.Trans

   Look up a path parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions. In particular, route pattern matching will not continue, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

6. queryParamMaybe :: forall a (m :: Type -> Type) . (Parsable a, Monad m) => Text -> ActionT m (Maybe a)

   scotty	Web.Scotty.Trans

   Look up a query parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

7. captureParamMaybe :: forall a (m :: Type -> Type) . (Parsable a, Monad m) => Text -> ActionT m (Maybe a)

   scotty	Web.Scotty.Trans.Strict

   Look up a capture parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions. In particular, route pattern matching will not continue, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

8. formParamMaybe :: forall (m :: Type -> Type) a . (MonadUnliftIO m, Parsable a) => Text -> ActionT m (Maybe a)

   scotty	Web.Scotty.Trans.Strict

   Look up a form parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

9. queryParamMaybe :: forall a (m :: Type -> Type) . (Parsable a, Monad m) => Text -> ActionT m (Maybe a)

   scotty	Web.Scotty.Trans.Strict

   Look up a query parameter. Returns Nothing if the parameter is not found or cannot be parsed at the right type. NB : Doesn't throw exceptions, so developers must raiseStatus or throw to signal something went wrong. Since: 0.21

10. mapMaybe :: (a -> Maybe b) -> EnumMap k a -> EnumMap k b

    enummapset	Data.EnumMap.Lazy

    No documentation available.

Page 179 of many | Previous | Next