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QueryResult.scala
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QueryResult.scala
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/*
* Copyright 2023 Valdemar Grange
*
* 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 gql
import io.circe._
import cats.data._
import cats.implicits._
import io.circe.syntax._
final case class QueryResult(
data: JsonObject,
errors: Chain[QueryResult.Error]
)
object QueryResult {
final case class Error(
error: Either[Throwable, String],
path: Chain[Json]
) {
val message = error.toOption.getOrElse("internal error")
}
object Error {
implicit val encoder: Encoder.AsObject[Error] = Encoder.AsObject.instance[Error] { err =>
Map(
"message" -> Some(err.message.asJson),
"path" -> NonEmptyChain.fromChain(err.path).map(_.asJson)
).collect { case (k, Some(v)) => k -> v }.asJsonObject
}
}
implicit val encoder: Encoder.AsObject[QueryResult] = Encoder.AsObject.instance[QueryResult] { r =>
Map(
"data" -> Some(r.data).filter(_.nonEmpty).map(_.asJson),
"errors" -> r.errors.toList.toNel.map(_.asJson)
).collect { case (k, Some(v)) => k -> v }.asJsonObject
}
}