scala/scala-async

Health v2 · maintenance only

Adoption not part of the score

1161 stars · 84 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Scala DSL providing async/await-style syntax for composing scala.concurrent Futures in direct style. It transforms async blocks at compile time into non-blocking state-machine code.

Use cases

• write async await style code in scala
• compose futures without nested flatMap callbacks
• run multiple futures concurrently and await results
• avoid blocking on Future results in scala
• simplify asynchronous control flow with if and await

When to choose

• you use Scala 2.12/2.13 with scala.concurrent.Future and want direct-style async code
• you want compile-time transformation with no runtime dependency overhead beyond a small library
• chained flatMap/map combinators make your Future code hard to read

When to avoid

• you are on Scala 3, which has native async/await support in the standard library ecosystem
• you use effect libraries like ZIO or Cats Effect with their own concurrency primitives
• you need runtime-scheduled async rather than compile-time transformed blocks

Facets

library · maturity maintenance

concurrency serialization developer-tools programming-languages jvm scala async-await futures dsl compiler-macro algorithms

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