rabbah commented on a change in pull request #2218: Port Controller from Spray
to Akka
URL:
https://github.com/apache/incubator-openwhisk/pull/2218#discussion_r130363710
##########
File path: common/scala/src/main/scala/whisk/http/ErrorResponse.scala
##########
@@ -168,7 +168,7 @@ case class ErrorResponse(error: String, code:
TransactionId)
/** Custom rejection, wraps status code for response and a cause. */
case class CustomRejection private (status: StatusCode, cause: String) extends
Rejection
-object ErrorResponse extends Directives {
+object ErrorResponse extends Directives with DefaultJsonProtocol {
Review comment:
do you know why the json serdes is required here?
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