For type safety, I use a value class for IDs, like:
case class ClaimId(id: String) extends AnyVal {
override def toString: String = id
}
I'd like to read this id from a query parameter.
For the moment, I use this:
parameter('claim_id.as[String] ?) { claimId ⇒
... claimId.map(ClaimId.apply) ...
}
(see the code here:
https://github.com/sphereio/cloudqueues-simulator/blob/master/src/main/scala/io/sphere/cloudqueues/Routes.scala#L123
)
I'd prefer to read directly into a ClaimId, like that:
parameter('claim_id.as[ClaimId] ?) { claimId ⇒ ... }
Can somebody show me how to do that?
All ParamMagnet, ParamDef are sealed traits that I cannot use.
I checked the existing tests (
https://github.com/akka/akka/blob/releasing-akka-stream-and-http-experimental-1.0-M5/akka-http-tests%2Fsrc%2Ftest%2Fscala%2Fakka%2Fhttp%2Fserver%2Fdirectives%2FParameterDirectivesSpec.scala)
but have not found something similar.
Thanks,
Yann
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