Vert.x
tapir
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Vert.x | tapir | |
---|---|---|
46 | 14 | |
14,018 | 1,275 | |
0.5% | 1.1% | |
9.6 | 9.8 | |
about 3 hours ago | 7 days ago | |
Java | Scala | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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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.
Vert.x
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Spark – A web micro framework for Java and Kotlin
https://vertx.io/
It's actively maintained with full time developers, performant, supports Kotlin out of the box, and has more features?
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Reactive database access on the JVM
Hibernate Reactive integrates with Vert.x, but an extension allows to bridge to Project Reactor if wanted
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What's the state of server-side frameworks with Kotlin support today for small teams?
Explicitly so:
Personally, I like vertx, it is modular and you can pick and choose what you need. It also has support for kotlin coroutines, https://vertx.io/, https://github.com/vert-x3/vertx-examples/tree/4.x/kotlin-examples
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Anything close beam/otp for other languages?
I really like Eclipse Vert.x... As both an Erlang dev and Java dev, it's a great synergy and soon to have support for Virtual Threads similar to BEAM.
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Go doesn’t do any magical stuff and I love that
There are many lean, popular, non-magical libraries in Java land. (https://quarkus.io/, https://vertx.io/, etc). Spring is a monster 😱. Its like comparing Kubernetes (written in Go) with some lean framework in another lang.
- PFA vs SRL
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Favorite hidden gem library?
Eclipse Vert.x - Add amazing Async to any Java stack
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Codeberg a GitHub Alternative from Europe
Vert.X example: https://github.com/eclipse-vertx/vert.x/blob/master/src/main/java/examples/EventBusExamples.java#L106 (couldn't even find docs)
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Quarkus fundamentals
In fact, it builds on top of proven standards such as Eclipse MicroProfile or frameworks such as Vert.x or JAX‑RS.
tapir
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what library/framework should I use for backend development?
You're not confined to the usual suggestions below (play, http4s). There's a ton of options. (I wrote test cases using a bunch of different frameworks a few years ago at https://github.com/hohonuuli/msdemos). Having written services using a variety of frameworks in production, I would strongly suggest using one that auto-generates API docs (openapi, swagger) for you. That will save you a huge amount of time later on. For heavier services, like the one at https://fathomnet.org/, I tend to the Java side (Quarkus is my current top choice, but Micronaut and Helidon are both great). For everything else I use Scala. My go-to right now is tapir using a vertx backend. See https://tapir.softwaremill.com/
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Micronaut vs others(Spring Boot, Quarkus and co.)
Tapir is a Scala framework. (which runs on the JDK) Since the recent release of version 1.0, it's become my go to for many projects. It doens't provide much in the way of integrations with 3rd party frameworks, but I actually prefer that. It does autogenerate great swagger docs though.
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Programming language comparison by reimplementing the same transit data app
I do wonder where the recommendation to use http4s for beginners came from. http4s is a very capable library (and if you care much about composition it is excellent), but I wouldn't describe the documentation as beginner friendly.
A slightly better starting point for scala 3 + type-safe server building is tapir e.g. https://github.com/softwaremill/tapir/blob/master/examples3/... . With that, you get a declarative definition of your endpoints (+ error types, auth, etc.) that you can use for both servers and clients, which comes very handy when writing integration tests of course.
> absolutely ridiculous the fetishization of extremely complex FP and type-level hacking that goes on in the ecosystem
An alternative way to look at it is that there is a lot of essential domain complexity that gets encoded via the type system to let the compiler do the hard work. That "extremely complex FP" does not arrive out of nowhere - I really recommend at least skimming through the slides from rossabaker, the http4s designer, that motivate where the core type signature comes from https://rossabaker.github.io/boston-http4s/#2
I suppose one of the "features" that I like about the (typelevel) community is that the approach of "worse is better" is not taken, and a lot of effort is expended to make things correct, modular and orthogonal. This has the drawback of increased upfront complexity, that anecdotally pays off the moment your compiler does not error and the program runs as intended.
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Scala.js AWS Lambda, using Scala 3
Did you try tapir? There is a module for deploying aws lambda with Scala js. Not sure whether it is compatible with Scala 3, I am sticking with Scala 2 until Scala 3 gets more mature.
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Library recommendations?
I'm aware, but it's a design decision that was made on purpose, and which I find in practice not a big problem at all.
In any case I strongly suggest to have a look at Tapir which will make your life a bit easier and allow you to swap the HTTP backend in the future if needed.
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Monorepo: seeking for an advice for bi-lang project
Backend is source of truth for types on frontend (backend generated OpenAPI definition with tapir, frontend takes it with orval)
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Experienced dev new to Scala looking for a quick answer to get me on the right track - Advice on *standard* Scala framework stack to quickly set up a web-app backend ;
In all cases I would strongly suggest to have a look at Tapir, regardless of the server implementation that you pick.
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Resources for learning about http4s and Typelevel ecosystem?
Finally I would strongly recommend having a look at Tapir. Even if you don't need to share endpoints or generate OpenAPI documentation, it provides a really neat abstraction on top of http4s.
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Scala 3 Reflection
Sounds like you want an IDL. smithy4s and tapir come to mind as potential solutions. Scala code gets generated for you from some intermediate format.
What are some alternatives?
Akka - Build highly concurrent, distributed, and resilient message-driven applications on the JVM
javalin - A simple and modern Java and Kotlin web framework [Moved to: https://github.com/javalin/javalin]
Quarkus - Quarkus: Supersonic Subatomic Java.
Micronaut - Micronaut Application Framework
RxJava - RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
helidon - Java libraries for writing microservices
Lagom - Reactive Microservices for the JVM
ZIO - ZIO — A type-safe, composable library for async and concurrent programming in Scala
Zuul - Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.
Jooby - The modular web framework for Java and Kotlin
Ehcache - Ehcache 3.x line
Redisson - Redisson - Easy Redis Java client with features of In-Memory Data Grid. Sync/Async/RxJava/Reactive API. Over 50 Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring Cache, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache ...