logRequestResponse

Logs request and response.

Signature

def logRequestResponse(marker: String)(implicit log: LoggingContext): Directive0
def logRequestResponse(marker: String, level: LogLevel)(implicit log: LoggingContext): Directive0
def logRequestResponse(show: HttpRequest ⇒ HttpResponsePart ⇒ Option[LogEntry])
                      (implicit log: LoggingContext): Directive0
def logRequestResponse(show: HttpRequest ⇒ Any ⇒ Option[LogEntry])(implicit log: LoggingContext): Directive0

The signature shown is simplified, the real signature uses magnets. [1]

[1]	See The Magnet Pattern for an explanation of magnet-based overloading.

Description

This directive is a combination of logRequest and logResponse. See logRequest for the general description how these directives work.

Example

// different possibilities of using logRequestResponse

// The first alternatives use an implicitly available LoggingContext for logging
// marks with "get-user", log with debug level, HttpRequest.toString, HttpResponse.toString
DebuggingDirectives.logRequestResponse("get-user")

// marks with "get-user", log with info level, HttpRequest.toString, HttpResponse.toString
DebuggingDirectives.logRequestResponse("get-user", Logging.InfoLevel)

// logs just the request method and response status at info level
def requestMethodAndResponseStatusAsInfo(req: HttpRequest): Any => Option[LogEntry] = {
  case res: HttpResponse => Some(LogEntry(req.method + ":" + res.message.status, Logging.InfoLevel))
  case _ => None // other kind of responses
}
DebuggingDirectives.logRequestResponse(requestMethodAndResponseStatusAsInfo _)

// This one doesn't use the implicit LoggingContext but uses `println` for logging
def printRequestMethodAndResponseStatus(req: HttpRequest)(res: Any): Unit =
  println(requestMethodAndResponseStatusAsInfo(req)(res).map(_.obj.toString).getOrElse(""))
val logRequestResponsePrintln = DebuggingDirectives.logRequestResponse(LoggingMagnet(printRequestMethodAndResponseStatus))

Get("/") ~> logRequestResponsePrintln(complete("logged")) ~> check {
  responseAs[String] === "logged"
}