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1. buildHeaders :: [(ByteString, ByteString)] -> Headers

   http-common	Network.Http.Types

   Given a list of field-name,field-value pairs, construct a Headers map.

2. emptyHeaders :: Headers

   http-common	Network.Http.Types

   No documentation available.

3. getHeader :: Response -> ByteString -> Maybe ByteString

   http-common	Network.Http.Types

   Lookup a header in the response. HTTP header field names are case-insensitive, so you can specify the name to lookup however you like. If the header is not present Nothing will be returned.

   let n = case getHeader p "Content-Length" of
   Just x' -> read x' :: Int
   Nothing -> 0
   

   which of course is essentially what goes on inside the client library when it receives a response from the server and has to figure out how many bytes to read. There is a fair bit of complexity in some of the other HTTP response fields, so there are a number of specialized functions for reading those values where we've found them useful.

4. getHeaders :: HttpType τ => τ -> Headers

   http-common	Network.Http.Types

   Get the Headers from a Request or Response.y

5. lookupHeader :: Headers -> ByteString -> Maybe ByteString

   http-common	Network.Http.Types

   No documentation available.

6. removeHeader :: Headers -> ByteString -> Headers

   http-common	Network.Http.Types

   Remove a header from the map. If a field with that name is not present, then this will have no effect.

7. retrieveHeaders :: Headers -> [(ByteString, ByteString)]

   http-common	Network.Http.Types

   Get the headers as a field-name,field-value association list.

8. setHeader :: ByteString -> ByteString -> RequestBuilder ()

   http-common	Network.Http.Types

   Set a generic header to be sent in the HTTP request. The other methods in the RequestBuilder API are expressed in terms of this function, but we recommend you use them where offered for their stronger types.

9. updateHeader :: Headers -> ByteString -> ByteString -> Headers

   http-common	Network.Http.Types

   Set a header field to the specified value. This will overwrite any existing value for the field. Remember that HTTP fields names are case insensitive!

10. package http-link-header

    HTTP Link header parser/writer Library for the HTTP Link header as specified in RFC 5988 "Web Linking"

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