smithy4s
tapir
smithy4s | tapir | |
---|---|---|
5 | 14 | |
348 | 1,354 | |
1.7% | 0.8% | |
9.4 | 9.8 | |
about 15 hours ago | 6 days ago | |
Scala | Scala | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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.
smithy4s
- Scala DevInTraining looking to contribute to projects
- Generating an AWS SDK for a new language (Scala)
-
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.
-
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.
- Meet smithy4s, a framework for generation http4s servers and clients from Smithy IDLs
tapir
-
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/
-
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.
-
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.
-
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.
-
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.
-
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)
-
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.
-
tAPIr 1.0 release [INFOGRAPHIC]
Check the infographic below, to see this tool history, functionalities and more. Make sure, to take tAPIr for a spin here and share your feedback with us in the comment section!
-
Scala vs Kotlin for REST API
Tapir is awesome, and you can pick the server backend according to your preferred ecosystem (for instance http4s + doobie, Zio + Quill, Akka + Slick, ...)
-
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.
What are some alternatives?
apicurio-registry - An API/Schema registry - stores APIs and Schemas.
http4s-jwt-auth - :lock: Opinionated JWT authentication library for Http4s
scala3-native-mill - Scala3 Native project template with Mill
distage-example - Example project built using distage, tagless final, http4s, doobie and zio
registry - The Registry API allows teams to track and manage machine-readable descriptions of APIs.
scala-http-client - Extends the akka-http-client with retry logic, error handling, logging and signing
rtree2d - RTree2D is a 2D immutable R-tree for ultra-fast nearest and intersection queries in plane and spherical coordinates
pfps-shopping-cart - :shopping_cart: The Shopping Cart application developed in the book "Practical FP in Scala: A hands-on approach"
jobby - Smithy4s (Scala + Scala.js) full-stack application
AkkaGRPC - Akka gRPC
Akka - Build highly concurrent, distributed, and resilient message-driven applications on the JVM
akka-http-metrics - Easily collect and expose metrics in your akka-http server