rad4s
guardrail
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rad4s
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Scala 3 N00b question - HTML table derivation
I had done this, have a look here (however it's Scala 2 only): https://github.com/ScalaWilliam/rad4s/blob/master/magtags/src/main/scala/com/scalawilliam/rad4s/magtags/CaseClassTable.scala
guardrail
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Ask HN: Why is there no specification for Command Line Interfaces?
What's the use case? I was thinking about this exact issue because my product ships several CLI tools, but I wasn't convinced it would be worth the effort.
An OpenAPI specification describes an HTTP interface, and I see it as useful because it makes it easier to write code in language-of-choice to generate HTTP requests (by generating client libraries from the OpenAPI spec).
For a CLI, the interface is the command-line. Usually people type these commands, or they end up in bash scripts, or sometimes they get called from programming language of choice by shelling out to the CLI. So I could see a use case for a CLI spec, which would make it easier to generate client libraries (which would shell out to the CLI)... but it seems a little niche.
Or maybe, as input to a documentation tool (like Swagger docs). I would imagine if you're using a CLI library like Python's Click, most of that data is already there. Click Parameters documentation: https://click.palletsprojects.com/en/8.1.x/parameters/
Or maybe, you could start from the spec and then generate code which enforces it. So any changes pass through the spec, which would make it easy to write code (server and client-side) / documentation / changelogs. Some projects like this: Guardrail (Scala) https://github.com/guardrail-dev/guardrail , and Connexion (Python) https://github.com/spec-first/connexion .
But without this ecosystem of tooling, documenting your CLI in a specification didn't really seem worth the effort. Of course, that's a bootstrapping problem.
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Scala Library To Generate Case Classes for JSON
You may have some luck with Guardrail https://github.com/guardrail-dev/guardrail/
What are some alternatives?
todo-http4s-doobie - A sample project of a microservice using http4s, doobie, and circe.
typespec
tranzactio - ZIO wrapper around Doobie and Anorm.
natchez-akka-http - A tiny integration library between Natchez and Akka Http
doobie-quill - Integration between Doobie and Quill libraries
scala-jsonschema - Scala JSON Schema
karma-plus-plus - http://karmaplusplus.com
iron-cats-example - An example project using Iron & Cats
circe - Yet another JSON library for Scala
connexion - Connexion is a modern Python web framework that makes spec-first and api-first development easy.
Argus - Builds models from JSON Schemas
circe-argus - Temporary fork of Argus, for generating Scala models from JSON Schemas