Is lift-JSON the preferred JSON library of the Scala community?
As I continue to plug away on my computer voice control application ( SARAH ), last night I started working with JSON, specifically the Lift-JSON library (part of the Lift Framework ), which seems to be the preferred JSON library of the Scala community.
What does a in List[A] mean in Scala?
A in List [A] refers to a generic type. So pretty much List of any type. For more information you can refer to the scala documentation here. So yes, Circe decodes/encodes each type separately. If it is a complex types e.g. List [Either [Option [A], Error]], it will piece together the individual decoders/encoders for each type whenever needed.
What is staffdecoder in Scala?
Well, basically it’s telling Scala to look for the nearest implicit value of the correct type . In our example staffDecoder is just one line above where we call decode function. So Scala will use this. For more information you can read this Wait so the name of implicit val doesn’t matter? Nope, Circe only cares about the type Surprise ( or not )!
What is the traversal syntax for JSON?
The traversal syntax is similar to what we have done previously: downField, downArray, as, etc We can use focus on a HCursor to revert back to Option [Json] And that’s it! That’s the end of this blog post. If there’s a TL DR from this, they are
What is jsonjson?
JSON (JavaScript Object Notation) is a lightweight, text-based, language-independent data exchange format that is easy for humans and machines to read and write.
How to use JSON processing in Java?
JSON Processing in Java : The Java API for JSON Processing JSON.simple is a simple Java library that allow parse, generate, transform, and query JSON. Getting Started : You need to download the json-simple-1.1 jar and put it in your CLASSPATH before compiling and running the below example codes. For importing jar in IDE like eclipse, refer here.
What is an example of JSON representation of a person?
Below is a simple example from Wikipedia that shows JSON representation of an object that describes a person. The object has string values for first name and last name, a number value for age, an object value representing the person’s address, and an array value of phone number objects.