run2-scala-circe-json

name	run2_scala-circe-json
description	Using circe for JSON tokenization in Scala, including printing, cursor navigation, and path-based access.

Circe JSON for Tokenization

Printing

import io.circe.{Json, Printer}

val compact = Printer.noSpaces.print(json)
val pretty = Printer.spaces2.print(json)

Path-Based Navigation with ACursor

import io.circe.ACursor

def navigate(json: Json, path: String): Option[Json] = {
  val cursor = path.split("\\.").foldLeft(json.hcursor: ACursor) { (c, part) =>
    if (part.forall(_.isDigit)) c.downN(part.toInt)
    else c.downField(part)
  }
  cursor.focus
}

Key Differences from Python json module

• circe uses Json ADT instead of Python's dynamic types
• No need for recursive JsonValue type alias - Json is already recursive
• Printing via Printer instances rather than json.dumps kwargs