Hello there,

I have used spray-io in the past and am new to akka-http. I have a question 
on writing directive/route that helps to intercept some / all end-points to 
write some useful logging (for now and may be add some headers and other 
stuff later). 
While I was writing code with spray-io I had..

def clockTimeTaken: Directive0 = {
  mapRequestContext { ctx =>
    val startTime = System.currentTimeMillis()
    log.mdc(Map("httpUrl" -> ctx.request.uri.toRelative.toString(), 
"httpMethod" -> ctx.request.method.name)) //add to actor logging.
    log.info(s"Started to service request")
    ctx.withHttpResponseMapped { response =>
      log.info(s"Completed HTTP in ${DateUtils.prettyPrintTimeTaken(startTime)} 
[${response.messagePart}]")
      log.clearMDC()
      response
    }
  }
}


Any pointers on how I could rewrite this would help.

Thanks,
Muthu

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