+&
object +&
Multiple param extractor:
object A extends QueryParamDecoderMatcher[String]("a")
object B extends QueryParamDecoderMatcher[Int]("b")
val routes = HttpRoutes.of {
case GET -> Root / "user" :? A(a) +& B(b) => ...
Value members
Concrete methods
def unapply(params: Map[String, Seq[String]]): Some[(Map[String, Seq[String]], Map[String, Seq[String]])]