I wonder if there is a possibility to make servant-client or the layer below, i.e. http-client log all requests and corresponding responses into a log file.

There is `managerModifyRequest :: ManagerSettings -> Request -> IO Request` (https://github.com/snoyberg/http-client/blob/master/http-client/Network/HTTP/Client/Types.hs#L672) which would allow to build logging for requests I suppose. 

However I could neither find a corresponding hook for Response, nor a "batteries included"TM `logRequests = True`, `requestLogger=...` or something along those lines.

Best

Jan