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EXAMPLES.md

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Rapture JSON Quickstart

Imports

Code Description
import rapture.core._ Access core Rapture functionality, like Modes
import modes.returnTry Have all fallible methods return results wrapped in Try
import modes.captureExceptions Have all fallible methods return results wrapped in Either
import rapture.json._ Use the Rapture JSON library
import jsonBackends.scalaJson._ Use the Scala standard library JSON backend
import jsonBackends.argonaut._ Use the Argonaut backend
import jsonBackends.jackson._ Use the Jackson backend
import jsonBackends.jawn._ Use the Jawn backend
import jsonBackends.json4s._ Use the JSON4S backend
import jsonBackends.lift._ Use the Lift JSON backend
import jsonBackends.spray._ Use the Spray JSON backend
import patternMatching.exactObjects Do not match objects with spurious additional keys
import patternMatching.exactArrays Do not match arrays with spurious additional elements
import patternMatching.exact Exact matching of both arrays and objects
import formatters.compact Output JSON to Strings without whitespace
import formatters.humanReadable Output JSON to Strings formatted with newlines and indentation

Parsing JSON

Code Description
Json.parse(src) Parse the string src
json"""{"foo":42}""" A JSON "literal"
json"""{ "foo" : $j }""" A JSON "literal" with substituted value

Accessing values

Code Description
json.candidates Access the candidates value of the JSON object
json.candidates(0) Access the first array of the candidates array
json.candidates(0).name Access the name value of the first candidate

Extracting values

Code Description
json.as[String] Extract a String from the JSON value
json.as[Int] Extract an Int from the JSON value
json.as[Double] Extract a Double from the JSON value
json.as[Boolean] Extract a Boolean from the JSON value
json.as[List[String]] Extracts a List of Strings from a JSON array
json.as[Set[String]] Extracts a Set of Strings from a JSON array
json.as[Vector[Int]] Extracts a Vector of Ints from a JSON array
json.as[MyCaseClass] Extracts an instance of MyCaseClass from a JSON object (assumes every parameter of the case class can be extracted)
json.as[Option[Int]] Extract Some[Int] if the value exists, otherwise extract None

Converting to JSON

Code Description
Json(7) Returns a Json integer
Json("Hello World!") Returns a Json string
Json(true) Returns a Json boolean
Json(List(1, 2, 3)) Returns a Json array
Json(Set("red", "green", "blue")) Returns a Json array
Json(MyCaseClass(42, "Hello", true)) Returns a Json object
Json(backendJsonValue) Returns a Rapture Json value which wraps a type from the underlying JSON backend

Modifying JSON

To be completed