CustomLogger returns a handler that calls the LogWriterFunc passed to it for every request.

GetClientIP returns the client IP address from the given HTTP request.

Logger returns a handler that logs a message for every request.

LogResponseWriter wraps http.ResponseWriter in order to capture HTTP status and response length information.

LogFunc logs a message using the given format and optional arguments.

LogWriterFunc takes in the request and responseWriter objects as well as a float64 containing the elapsed time since the request first passed through this middleware and does whatever log writing it wants with that information.