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  1. getHeaders :: GetHeaders ls => ls -> [Header]

    servant Servant.API

    No documentation available.

  2. getHeadersHList :: Headers (ls :: [Type]) a -> HList ls

    servant Servant.API

    HList of headers.

  3. lookupResponseHeader :: forall (h :: Symbol) a (headers :: [Type]) r . HasResponseHeader h a headers => Headers headers r -> ResponseHeader h a

    servant Servant.API

    Look up a specific ResponseHeader, without having to know what position it is in the HList.

    >>> let example1 = addHeader 5 "hi" :: Headers '[Header "someheader" Int] String
    
    >>> let example2 = addHeader True example1 :: Headers '[Header "1st" Bool, Header "someheader" Int] String
    
    >>> lookupResponseHeader example2 :: ResponseHeader "someheader" Int
    Header 5
    
    >>> lookupResponseHeader example2 :: ResponseHeader "1st" Bool
    Header True
    
    Usage of this function relies on an explicit type annotation of the header to be looked up. This can be done with type annotations on the result, or with an explicit type application. In this example, the type of header value is determined by the type-inference, we only specify the name of the header:
    >>> :set -XTypeApplications
    
    >>> case lookupResponseHeader @"1st" example2 of { Header b -> b ; _ -> False }
    True
    

  4. noHeader :: forall (h :: Symbol) v orig new . AddHeader '[Optional, Strict] h v orig new => orig -> new

    servant Servant.API

    Deliberately do not add a header to a value.

    >>> let example1 = noHeader "hi" :: Headers '[Header "someheader" Int] String
    
    >>> getHeaders example1
    []
    

  5. noHeader' :: forall (mods :: [Type]) (h :: Symbol) v orig new . AddHeader mods h v orig new => orig -> new

    servant Servant.API

    Same as noHeader but works with Header', so it's possible to use any mods.

  6. parseHeader :: FromHttpApiData a => ByteString -> Either Text a

    servant Servant.API

    Parse HTTP header value.

  7. toHeader :: ToHttpApiData a => a -> ByteString

    servant Servant.API

    Convert to HTTP header value.

  8. newtype AcceptHeader

    servant Servant.API.ContentTypes

    No documentation available.

  9. AcceptHeader :: ByteString -> AcceptHeader

    servant Servant.API.ContentTypes

    No documentation available.

  10. class AsHeaders (headers :: [Type]) response returnType

    servant Servant.API.MultiVerb

    This is used to convert a response containing headers to a custom type including the information in the headers. If you need to send a combination of headers and response that is not provided by Servant, you can cwrite your own instance. Take example on the ones provided.

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