io.cardell.openfeature.circe.CirceStructureDecoder.scala Maven / Gradle / Ivy
/*
* Copyright 2023 Alex Cardell
*
* 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 io.cardell.openfeature.circe
import cats.syntax.all._
import io.circe.Decoder
import io.circe.parser.parse
import io.cardell.openfeature.StructureDecoder
import io.cardell.openfeature.StructureDecoderError
trait CirceStructureDecoder {
implicit def decoder[A](
implicit circeDecoder: Decoder[A]
): StructureDecoder[A] =
new StructureDecoder[A] {
def decodeStructure(string: String): Either[StructureDecoderError, A] =
for {
parsed <- parse(string).leftMap(CirceParseError(_))
decoded <- parsed.as[A].leftMap(CirceDecodeError(_))
} yield decoded
}
}