cowboy_kitten

Respond with style

Description

This application provides cowboy stream_handler to send customized response bodies depending on status code. For every response that cowboy is about to send, cowboy_kitten will check status code against rules, you set and modify response body if nessesary.

Usage

Just add cowboy_kitten to the stream chain. It is recomended to add it just before the cowboy_stream_h handler. resp_bodies should be provided inside the env map, that is a part of cowboy setup.

Response body format

Response bodies can be one of two types: files or binary strings, if you want to send file, use {file, Filename} tuple, binary strings can be used directly.

Example

cowboy:start_clear(http, [{port, 8080}], #{
   stream_handlers => [cowboy_kitten, cowboy_stream_h],
   env => #{
       dispatch => Dispatch,
       resp_bodies => #{
           500 => {file, "500_error_resp_file"},
           400 => <<"400_error_msg">>
       }
   }
}).