sbt-native-image
Scalatra
sbt-native-image | Scalatra | |
---|---|---|
5 | 4 | |
246 | 2,636 | |
1.2% | 0.2% | |
2.9 | 8.8 | |
17 days ago | 6 days ago | |
Scala | Scala | |
- | GNU General Public License v3.0 or later |
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sbt-native-image
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Scala.js AWS Lambda, using Scala 3
Take a look at sbt-native-image or sbt-native-packager for building the native image.
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GraalVM native-image with Scala 3 reflection hell
The reason seems to be Scala 3's new encoding for lazy vals, where a reflective access to a variable called bitmap takes place. To demonstrate this, I took the http4s g8 template, set it up with Scala 3.1.0, added sbt native-image, started the nativeImageRunAgent and ran a single request against GET /joke. After stopping the server, the native-image run agent generated the reflective configs that are required for this path of execution. Comparing the generated Scala 2.13 with the Scala 3 configs, yields a bloated version for Scala 3 that contains these additional rules:
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Is Scala and Play Framework dying?
Sbt plugin: https://github.com/scalameta/sbt-native-image
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Native Image Compilation for A Purely Functional Example Application
IIRC, the sbt-native-image plugin can abstract that away, too: https://github.com/scalameta/sbt-native-image#nativeimagerunagent https://github.com/scalameta/sbt-native-image
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SBT error when running package application: java.lang.RuntimeException: No main class detected.
Assembly, however, has some disadvantages so you may also want to look into other alternatives like sbt-native-packager. You may even want to produce a binary using sbt-native-image (which uses GraalVM under the hood) so your users do not need to install anything at all, not even a JRE.
Scalatra
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Server Stack Options for Scala
Scalatra
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Is Scala and Play Framework dying?
A minimalistic web framework. https://scalatra.org/ Good for small projects, kind of difficult to scale up. If you plan to learn something to find a job with it later, If rather bet on akka-http. But if you want to set up your own small project, it's a good choice.
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Checklist for learning Scala
Find the frameworks: Scalatest, Scalatra, Sangria
What are some alternatives?
sbt-native-packager - sbt Native Packager
Play - The Community Maintained High Velocity Web Framework For Java and Scala.
zio-microservice - ZIO-powered microservices via HTTP and other protocols.
Finatra - Fast, testable, Scala services built on TwitterServer and Finagle
sbt-assembly - Deploy über-JARs. Restart processes. (port of codahale/assembly-sbt)
Lift - Lift Framework
LogoRRR - A simple and straightforward log viewer that displays the events of interest in a clear and concise visual manner so that you can identify them faster.
Skinny Framework - :monorail: "Scala on Rails" - A full-stack web app framework for rapid development in Scala
aws-sdk-scalajs-facade - A complete set of Scala.js type facade for aws-sdk-js
Colossus - I/O and Microservice library for Scala
Unfiltered - A toolkit for servicing HTTP requests in Scala