intro-cats-effect
FS2
| intro-cats-effect | FS2 | |
|---|---|---|
| 3 | 17 | |
| 25 | 2,325 | |
| - | 1.1% | |
| 0.0 | 9.5 | |
| over 2 years ago | 7 days ago | |
| HTML | Scala | |
| - | GNU General Public License v3.0 or later |
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intro-cats-effect
- What do you think are the defining features that make Scala uniquely better than other languages?
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Question using Cats effect & Http4s
Intro to Cats Effect by Gavin: https://github.com/Daenyth/intro-cats-effect - This talk is very practical and gets you familiar with IO
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Example of building web apis (functionally) in Scala
Read the docs on the cats-effect website and then solve the tutorial on your own, do not look at the provided answers / code snippets. I also recommend you the talk "Intro to cats effect" by Gavin Bisesi (aka Daenyth). - This one to getting familiar with the IO monad and understand why it it useful.
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. :)
What are some alternatives?
taller-go - Presentación y código fuente para el taller de Go.
cats-effect - The pure asynchronous runtime for Scala
stainless - Verification framework and tool for higher-order Scala programs
Diffy
scala-pet-store - An implementation of the java pet store using FP techniques in scala
Http4s - A minimal, idiomatic Scala interface for HTTP
tagless-final - [Moved to: https://github.com/DevInsideYou/tagless-final]
ScalaMock - Native Scala mocking framework
meteor - https://d2a4u.github.io/meteor/
ScalaTest - A testing tool for Scala and Java developers
freebsd-papers - The FreeBSD Papers, Slides, and Video Collection
ScalaMeter - Microbenchmarking and performance regression testing framework for the JVM platform.