jsoniter-scala
splain
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jsoniter-scala | splain | |
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29 | 2 | |
704 | 369 | |
- | - | |
9.6 | 6.3 | |
8 days ago | about 2 months ago | |
Scala | Scala | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
jsoniter-scala
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1BRC Merykitty's Magic SWAR: 8 Lines of Code Explained in 3k Words
What an amazing step by step explanation!
More than 2 years ago I found that byte array view var handles are quite suitable to cook efficient SWAR routines with Java/Scala.
See a lot of other examples of SWAR usage, like parsing Base16/64 string, java.time.* and number values directly from byte arrays:
https://github.com/plokhotnyuk/jsoniter-scala/blob/master/js...
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The Newest Java Json Benchmark Results just dropped
Afaik dsl-json came up with a lot of improvements and inspired a several other libraries like JsonIter and jsonIter-scala. Jsoniter-scala by u/plokhotnyuk is probably the most optimized JSON library on the JVM at this point, and seems to power most of the Scala ecosystem. Some implementations/optimizations eventually made their way back into Jackson and other libraries.
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Please try my JSON library
I was on your place more then 5 years ago, when cut the 1st release of jsoniter-scala.
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Post your problems with Scala 3/2.13 compiler performance!
I've just increased compiler performance in ~1.5x times by adding these JVM options for the code cache
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smithy-translate : a CLI tool to turn openapi specs and json-schema specs into smithy specs, written in Scala
We have our own open-source code-generator that produces Scala code from Smithy. The code module is entirely dependency-free, and the generated code is not biased towards any library, be that http or json. We do however have out-of-the-box integration with jsoniter and http4s.
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Why does Scala seem to be slow at benchmark results?
You can use jsoniter-scala. It is easy to use like upickle.
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Scala needs *highly* efficient libraries to survive in a multi-core age
BTW, jsoniter-scala uses it for faster parsing and serialization using SWAR techniques, like here.
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Using Circe with GADT
Probably you should have both codecs (for Foo and for its T) are implicitly available in the scope, like it is done in the following test for jsoniter-scala:
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Starting with scala
BEWARE: uJson is vulnerable under DoS attacks
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Is Scala a good choice for a data intensive web backend?
Please see sources (and GitHub history of development) of jsoniter-scala as an example in the domain of JSON parsing and serialization.
splain
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Every time I sit down to use an HTTP client and JSON parser, I get really frustrated
Requires deep knowledge of implicits and how to debug them. Which if you have nested data structures is basically impossible without something like Splain.
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Getting Comfortable with Implicits
In Scala 2.13 and above, there is a compiler switch that will print out the exact implicit you are missing at compile time and why (https://docs.scala-lang.org/overviews/compiler-options/errors.html). Prior to that in scala 2, you need the tek/splain compiler plugin (https://github.com/tek/splain).
What are some alternatives?
circe - Yet another JSON library for Scala
sbt-dependency-check - SBT Plugin for OWASP DependencyCheck. Monitor your dependencies and report if there are any publicly known vulnerabilities (e.g. CVEs). :rainbow:
json4s - JSON library
better-monadic-for - Desugaring scala `for` without implicit `withFilter`s
DSL-JSON - High performance JVM JSON library
sbt-revolver - An SBT plugin for dangerously fast development turnaround in Scala
jackson-module-scala - Add-on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes
xsbt-web-plugin - Servlet support for sbt
Play JSON - The Play JSON library
sbt-sonatype - A sbt plugin for publishing Scala/Java projects to the Maven central.
spray-json - A lightweight, clean and simple JSON implementation in Scala
sbt-updates - sbt plugin that can check Maven and Ivy repositories for dependency updates