FS2
Scala Test-State
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FS2 | Scala Test-State | |
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17 | 1 | |
2,321 | 138 | |
0.9% | - | |
9.5 | 1.7 | |
7 days ago | 8 days ago | |
Scala | Scala | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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FS2
- Ask HN: What are some of the most elegant codebases in your favorite language?
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The Great Concurrency Smackdown: ZIO versus JDK by John A. De Goes
Recently, CE3 has had similar issues reported across multiple repositories, almost an epidemic of reports!
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Parallel streaming in Haskell: Part 1 – Fast, efficient, and fun
Thanks for the explanation!
So it's pull based and not push based like most other streams lib.
Does maybe someone know how this compares to FS2 or Iteratees than? (Both are also pull based streaming solutions).
https://fs2.io/#/
https://en.wikipedia.org/wiki/Iteratee
Looks quite similar to me. Is the Scala FS2 lib maybe even a clones of the Haskell solution? Or are they different in important aspects?
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Grasping the concepts and getting them down to earth
Most important/known: * https://http4s.org/ - an HTTP client/server * https://github.com/typelevel/fs2 - streaming * https://github.com/tpolecat/doobie - JDBC
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Should I Move From PHP to Node/Express?
On the contrary, switching to the functional mindset, with something like Typelevel Scala3 and respective cats and cats-effect fs2 frameworks, helps to rethink a lot of designs and development approaches.
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Is Scala a good choice for a data intensive web backend?
fs2 for streaming.
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Is “Functional Programming in Scala” 1st edition still relevant?
Finally, the last chapter has been rewritten to be based on some of the main design ideas from FS2 (https://fs2.io), which I hope will be more approachable than the 1st edition.
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FS2 stream doesn't work as I expect it to
Just to clarify, is your doubt about the meaning of the api, or do you think you have found a bug? In either case, you can also open a Github discussion https://github.com/typelevel/fs2/discussions.
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How to update and access state that needs to be shared across multiple API endpoints with FP?
Another more reactive solution would to use signals, as in FPR sinal network. fs2 implements this very nicely here https://github.com/typelevel/fs2/blob/8b285a6b54c63d43ed6aa3bb91365652035c90e5/core/shared/src/main/scala/fs2/concurrent/Signal.scala
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Introducing effects systems S.A. ZIO at work?
Assuming the bug mentioned here is https://github.com/typelevel/fs2/issues/2568, we came up with a partial fix in a day (https://github.com/typelevel/fs2/pull/2569) and a complete fix in 2 days: https://github.com/typelevel/fs2/pull/2572. Note the original bug was opened on a Saturday. :)
Scala Test-State
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What's the maturity level of ScalaJS?
It actually been rock-solid for many, many years now! I've built quite a few things with it and introduced it to teams who picked it up very quickly and with no major problems. I've never had any production problems with it EVER and I've been living and breathing it pretty much every day for ages now. It's very, very unit testable (oh! check out Scala Test State if you're interested in really powerful and concise Scala.JS testing) so it's nearly trivial to have to very well tested webapp, including mouse clicks, key presses, whatever you want. Awesome awesome stuff and the Scala.JS team deserve some kind of tech Nobel prize imo. It's been a game changer for me.
What are some alternatives?
cats-effect - The pure asynchronous runtime for Scala
Gatling - Modern Load Testing as Code
Diffy
ScalaMeter - Microbenchmarking and performance regression testing framework for the JVM platform.
Http4s - A minimal, idiomatic Scala interface for HTTP
µTest - A simple testing framework for Scala
ScalaMock - Native Scala mocking framework
cornichon - Testing tool in Scala for HTTP JSON API
ScalaTest - A testing tool for Scala and Java developers
ScalaCheck - Property-based testing for Scala