scalajson | ScalaJSON - JSON for Scala , currently contains minimal AST | Parser library
kandi X-RAY | scalajson Summary
kandi X-RAY | scalajson Summary
ScalaJSON library, currently provides two minimal implementations of JSON AST, one that is designed for typical use and another that is designed for performance/corner cases.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of scalajson
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scalajson Examples and Code Snippets
import scalajson.jNumberRegex
"3535353" match {
case jNumberRegex(_ *) => true
case _ => false
}
"org.scala-lang.platform" %% "scalajson" % "1.0.0-M4"
"org.scala-lang.platform" %%% "scalajson" % "1.0.0-M4"
Community Discussions
Trending Discussions on scalajson
QUESTION
I'm currently trying to create a class and subclasses that encapsulate various configuration aspects (provided in json) for a data pipeline; I'm still very much learning scala as well. I'm using the Play framework library in order to parse the json string input - https://www.playframework.com/documentation/2.8.x/ScalaJson
I have some code that currently works, but there are several aspects of it that feel wrong, and this does not feel like the correct approach.
The workflow for the application needs to take a json string, parse and validate it against various similar but slightly different structures, and then make the values accessible for other bits of downstream processing (e.g. if the file type is a csv file, set some config thus, if it's a json file do this instead); but it's important to note that this is a dynamic process. This seemed to me to be a perfect use case for case classes, but I have a feeling I've misunderstood their use.
So I have a sealed (in order to make sure that all matches are known) abstract class FileConfig, and currently two subclasses, DelimitedConfig and JsonConfig. The DelimitedConfig class also makes use of an additional case class DelimitedFileTypeDetails, which is essentially the main difference between the two at this point, but there will be other deviations added as I continue; and I also have companion objects for all three classes in order to take advantage of the play framework format method:
...ANSWER
Answered 2021-Jul-02 at 13:25If every FileConfig
will have a member of a given type (e.g. fileType
), you can put that member in FileConfig
:
QUESTION
I have a simple json structure like this:
...ANSWER
Answered 2020-Jun-04 at 19:05Analogous doesn't mean identical, and JsPath
doesn't offer conditional path.
QUESTION
I'm using Akka's HTTP client library to request a json, and I want to use Play Framework's play-json to parse the json. After I get Akka's HttpResponse
, I don't know how to parse the json from the response body, and I don't know how to pass the json to another function in the onComplete
directive. Instead, I get this error
ANSWER
Answered 2020-May-10 at 07:15The main problem is that Unmarshal
returns a Future
so you need to process the data inside the Future
to get the String
value.
If you want to keep the result rather than just print it, use tranformWith
on the initial result rather than onComplete
:
QUESTION
I recently started to learn Scala. I need an EASY way to SERIALIZE my data in Json. Below I will give an example of data. I tried several popular libraries: GSON, Play JSON, Circe, but did not get the result! GSON does not know how to work with Option (eg Option [String]), in Play JSON and Circe they need to describe serialization and deserialization of an abstract class (I don’t know how to get around this).
...ANSWER
Answered 2020-Feb-21 at 11:12You need to create a companion object for your case class as:
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