How to handle JSON deserialization with custom date formats in Play Framework for Scala?
I've encountered a strange issue with I keep running into I'm building a feature where Hey everyone, I'm running into an issue that's driving me crazy... I'm working on a Scala project using the Play Framework (version 2.8) and I need to deserialize JSON into a case class that includes a date field in a custom format (e.g., "dd-MM-yyyy")... I've set up my case class like this: ```scala case class Event(name: String, date: LocalDate) ``` I'm using the Play JSON library to handle deserialization, but I'm working with an scenario where the default ISO format is expected for the date, leading to deserialization errors. My JSON looks like this: ```json {"name": "Sample Event", "date": "25-12-2023"} ``` When I try to deserialize using `Json.fromJson[Event](json)`, I get the following behavior: ``` JsResultException: Invalid date format: 25-12-2023 ``` I've tried creating a custom `Reads[LocalDate]` but I'm not sure how to properly integrate it with the Play JSON implicits. Here's what I've attempted so far: ```scala import play.api.libs.json._ import java.time.LocalDate import java.time.format.DateTimeFormatter implicit val localDateReads: Reads[LocalDate] = Reads[LocalDate] { json => json.validate[String].flatMap { dateStr => val formatter = DateTimeFormatter.ofPattern("dd-MM-yyyy") try { JsSuccess(LocalDate.parse(dateStr, formatter)) } catch { case _: Exception => JsError("Invalid date format") } } } ``` However, when I add this implicit `Reads` to my scope and run the deserialization again, I still get the same behavior message. I'm not sure if I'm missing something in how to register my custom `Reads` with the Play JSON library. Any guidance or best practices for handling custom date formats during JSON deserialization in Play Framework would be greatly appreciated! My development environment is macOS. Any help would be greatly appreciated! I'm working in a Linux environment. Thanks, I really appreciate it! For reference, this is a production REST API. Any help would be greatly appreciated! Any feedback is welcome!