jsonpath-scala is an implementation of jsonpath [1] in scala.
the current implementation allows querying jsonpath to json datastructures built with liftweb's json implementation [2][3] but the library allows supporting other libraries just subclassing org.marianoguerra.jsonpath.JsonPath[T].
this is early work and will not return the same results as other jsonpath implementation for some cases like recursive queries like $..foo, querying inside arrays, the value of empty results and wildcard usage.
a nice next step (and a nice way of helping) would be to define a set of language independent tests to run accross all implementations, for example files with the query, source object and expected result as json to load on all implementations and test for correctness.
[1] http://goessner.net/articles/JsonPath/
[2] https://github.com/lift/lift/tree/master/framework/lift-base/lift-json/
marianoguerra
I need it for one project
check it out, install sbt >= 0.11.0 and run:
git clone https://github.com/marianoguerra/jsonpath-scala.git cd jsonpath-scala sbt test
you can play with it in a scala REPL:
sbt console
and then some examples:
scala> import org.marianoguerra.jsonpath.liftjson.JsonPath
import org.marianoguerra.jsonpath.liftjson.JsonPath
scala> import net.liftweb.json._
import net.liftweb.json._
scala> JsonPath.query("$.name", "{\"name\": \"mariano\"}")
res0: Either[org.marianoguerra.jsonpath.Error,net.liftweb.json.package.JValue] = Right(JString(mariano))
scala> JsonPath.query("$.name", JObject(List(JField("name", JString("mariano")))))
res1: Either[org.marianoguerra.jsonpath.Error,net.liftweb.json.package.JValue] = Right(JString(mariano))
MIT