c

org.http4s.dsl.impl

OptionalValidatingQueryParamDecoderMatcher

abstract class OptionalValidatingQueryParamDecoderMatcher[T] extends AnyRef

param extractor using org.http4s.QueryParamDecoder. Note that this will _always_ match, but will return an Option possibly containing the result of the conversion to T

case class Foo(i: Int)
implicit val fooDecoder: QueryParamDecoder[Foo] = ...

case class Bar(i: Int)
implicit val barDecoder: QueryParamDecoder[Bar] = ...

object FooMatcher extends ValidatingQueryParamDecoderMatcher[Foo]("foo")
object BarMatcher extends OptionalValidatingQueryParamDecoderMatcher[Bar]("bar")

val routes = HttpRoutes.of {
  case GET -> Root / "closest" :? FooMatcher(fooValue) +& BarMatcher(barValue) =>
    ^(fooValue, barValue getOrElse 42.right) { (foo, bar) =>
      ...
    }.fold(
      nelE => BadRequest(nelE.toList.map(_.sanitized).mkString("\n")),
      baz  => { ... }
    )
Source
Path.scala
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Instance Constructors

  1. new OptionalValidatingQueryParamDecoderMatcher(name: String)(implicit arg0: QueryParamDecoder[T])

Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  8. def finalize(): Unit
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  15. final def synchronized[T0](arg0: ⇒ T0): T0
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  16. def toString(): String
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  17. def unapply(params: Map[String, Seq[String]]): Some[Option[ValidatedNel[ParseFailure, T]]]
  18. final def wait(): Unit
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