zio.query.Request.scala Maven / Gradle / Ivy
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/*
* Copyright 2019-2023 John A. De Goes and the ZIO Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package zio.query
import zio.stacktracer.TracingImplicits.disableAutoTrace
/**
* A `Request[E, A]` is a request from a data source for a value of type `A`
* that may fail with an `E`.
*
* {{{
* sealed trait UserRequest[A] extends Request[Nothing, A]
*
* case object GetAllIds extends UserRequest[List[Int]]
* final case class GetNameById(id: Int) extends UserRequest[String]
*
* }}}
*/
trait Request[E, A]