-record(request,
        {method   = undefined :: undefined | method(),
         path     = undefined :: undefined | binary(),
         qargs    = undefined :: undefined | #{Key :: binary() := Value :: binary()},
         fragment = undefined :: undefined | none | binary(),
         version  = undefined :: undefined | http10 | http11 | http20,
         headers  = undefined :: undefined | [{Key :: binary(), Value :: binary()}],
         cookies  = undefined :: undefined | #{Key :: binary() := Value :: binary()},
         enctype  = undefined :: undefined | none | urlencoded | multipart(),
         size     = undefined :: undefined | none | non_neg_integer(),
         body     = undefined :: undefined | none | body()}).

-record(response,
        {type    = page   :: page | {data, string()},
         version = http11 :: http11,
         code    = 200    :: pos_integer(),
         slogan  = ""     :: string(),
         headers = []     :: [{Key :: string(), Value :: iolist()}],
         body    = ""     :: iolist()}).

-type method()    :: get | post | options.
-type multipart() :: {multipart, Boundary :: binary()}.
-type body()      :: {partial, binary()} | {multipart, [body_part()]} | binary().
-type body_part() :: {Field :: binary(), Data :: binary()}
                   | {Field :: binary(), Name :: binary(), Data :: binary()}.