Top 7 Scala Asynchronou Projects

ZIO

10 3,902 0.0 Scala

ZIO — A type-safe, composable library for async and concurrent programming in Scala

Project mention: I had a great experience with Scala and hopefully it will get more popular | /r/scala | 2023-07-11

scala has 2 healthy and pretty complete lib ecosystems : check out typelevel and ZIO. Both are FP oriented, which might not be your cup of tea at first glance but I would encourage you to try em out ! Softest introduction would be to start with the typelevel cats library and build up from there. The excellent Scala with Cats will ease you softly into an FP mindset. It's a bit dated and for scala 2 only but translating to Scala 3 is a very good exercise if you feel so inclined !
cats-effect

4 1,880 0.0 Scala

The pure asynchronous runtime for Scala

Project mention: A question about Http4s new major version | /r/scala | 2023-04-25

Those benchmarks are using a snapshot version of cats-effect. I don't know where that one comes from, but previously they were using a snapshot from https://github.com/typelevel/cats-effect/pull/3332 which had some issues (3.5-6581dc4, 70% performance degradation), which have since been resolved (see that PR for more info and comparative benchmarks).
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sttp

0 1,393 8.9 Scala

The Scala HTTP client you always wanted!
Scala Async

0 1,137 6.6 Scala

An asynchronous programming facility for Scala
ReactiveMongo

0 845 0.0 Scala

:leaves: Non-blocking, Reactive MongoDB Driver for Scala
Play WS

0 219 8.5 Scala

Standalone Play WS, an async HTTP client with fluent API
fs2-kafka

0 79 0.0 Scala

Kafka client for functional streams for scala (fs2) (by Spinoco)
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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-07-11.

Scala Asynchronous related posts

A question about Http4s new major version
3 projects | /r/scala | 25 Apr 2023
Java 19 Is Out
4 projects | news.ycombinator.com | 20 Sep 2022
Typelevel Native
1 project | /r/scala | 20 Sep 2022
Question about some advanced types
3 projects | /r/scala | 5 Sep 2022
Cats vs ZIO
2 projects | /r/scala | 10 Jul 2022
Future of monix
1 project | /r/scala | 10 Apr 2022
I love Scala but I can't stand:
4 projects | /r/scala | 27 Mar 2022
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getonboard.dev | 28 Nov 2023

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Index

What are some of the best open-source Asynchronou projects in Scala? This list will help you:

	Project	Stars
1	ZIO	3,902
2	cats-effect	1,880
3	sttp	1,393
4	Scala Async	1,137
5	ReactiveMongo	845
6	Play WS	219
7	fs2-kafka	79