Safe Haskell	Safe-Inferred
Language	Haskell98

Network.HTTP.Types.QueryLike

Synopsis

class QueryLike a where
- toQuery :: a -> Query
class QueryKeyLike a where
- toQueryKey :: a -> ByteString
class QueryValueLike a where
- toQueryValue :: a -> Maybe ByteString

Documentation

class QueryLike a where Source #

Types which can, and commonly are, converted to Query are in this class.

You can use lists of simple key value pairs, with ByteString (strict, or lazy: ByteString ), Text , or String as the key/value types. You can also have the value type lifted into a Maybe to support keys without values; and finally it is possible to put each pair into a Maybe for key-value pairs that aren't always present.

Methods

toQuery :: a -> Query Source #

Convert to Query .

Instances

Instances details

( QueryKeyLike k, QueryValueLike v) => QueryLike [ Maybe (k, v)] Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQuery :: [ Maybe (k, v)] -> Query Source #
( QueryKeyLike k, QueryValueLike v) => QueryLike [(k, v)] Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQuery :: [(k, v)] -> Query Source #

class QueryKeyLike a where Source #

Types which, in a Query-like key-value list, are used in the Key position.

Methods

toQueryKey :: a -> ByteString Source #

Instances

Instances details

QueryKeyLike ByteString Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryKey :: ByteString -> ByteString0 Source #
QueryKeyLike ByteString Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryKey :: ByteString -> ByteString Source #
QueryKeyLike Text Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryKey :: Text -> ByteString Source #
QueryKeyLike [ Char ] Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryKey :: [ Char ] -> ByteString Source #

class QueryValueLike a where Source #

Types which, in a Query-like key-value list, are used in the Value position.

Methods

toQueryValue :: a -> Maybe ByteString Source #

Instances

Instances details

QueryValueLike ByteString Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryValue :: ByteString -> Maybe ByteString0 Source #
QueryValueLike ByteString Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryValue :: ByteString -> Maybe ByteString Source #
QueryValueLike Text Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryValue :: Text -> Maybe ByteString Source #
QueryValueLike [ Char ] Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryValue :: [ Char ] -> Maybe ByteString Source #
QueryValueLike a => QueryValueLike ( Maybe a) Source #
Instance details Defined in Network.HTTP.Types.QueryLike Methods toQueryValue :: Maybe a -> Maybe ByteString Source #