JarCasting
NaviPath
A lib for adding implicit JsonPath functions to Strings
Based on https://github.com/gatling/jsonpath. I've embedded the code from gatling instead of adding the maven binary dependency in order to support more scala versions via cross compile.
See http://goessner.net/articles/JsonPath/ for jsonpath documentation.
INSTALL
- ongoing dev is for for scala 2.12+
- if you use scala 2.11 - use version 2.1.0
// https://mvnrepository.com/artifact/tech.navicore/navipath
libraryDependencies += "tech.navicore" %% "navipath" % "4.0.1"
USAGE
See http://goessner.net/articles/JsonPath/ for JsonPath documentation.
DSL USAGE
Examples where "<json>" is a valid json string or parsed output from .asJson:
import navicore.data.navipath.dsl.NaviPathSyntax._
"<json>".query[String]("$.name")
"<json>".query[Long]("$.widget.window.height")
"<json>".query[List[String]]("$.stuff[*].name")
"<json>".query[List[Int]]("$.stuff[*].value")
First match support:
val jsonString = """{"name": "Ishmael"}"""
import navicore.data.navipath.dsl.NaviPathSyntax._
val result = jsonString.query[String]("$.name")
result should be ('defined)
result.fold()(assertResult("Ishmael"))
Multiple matches support:
val jsonString = """{"stuff": [{"name": "Ishmael"}, {"name": "Mud"}]}"""
import navicore.data.navipath.dsl.NaviPathSyntax._
val results = jsonString.query[List[String]]("$.stuff[*].name")
results.fold()(r => assert(r.head == "Ishmael"))
results.fold()(r => assert(r(1) == "Mud"))
Parse once, query many times support:
val jsonString = """{"stuff": [{"name": "Ishmael", "id": 1}, {"name": "Mud", "id": 2}]}"""
import navicore.data.navipath.dsl.NaviPathSyntax._
val parsedJson = jsonString.asJson
val names = parsedJson.query[List[String]]("$.stuff[*].name")
val ids = parsedJson.query[List[Int]]("$.stuff[*].value")
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