Created
April 4, 2016 10:07
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| implicit def taggedStringFormat[T]: Format[String @@ T] = new Format[String @@ T] { | |
| def reads(json: JsValue): JsResult[String @@ T] = json match { | |
| case JsString(v) => JsSuccess(tag[T](v)) | |
| case unknown => JsError(s"String value expected, got: $unknown") | |
| } | |
| def writes(v: String @@ T): JsValue = JsString(v) | |
| } |
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