socketry/async

Health v2 · maintenance only

Adoption not part of the score

2459 stars · 111 forks observed · 2026-08-28

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

Async is a composable asynchronous event-driven I/O framework for Ruby built on the io-event gem. It provides lightweight fiber-based concurrency with a reactor/scheduler model, enabling thousands of concurrent clients per process without callbacks.

Use cases

• run concurrent HTTP requests in Ruby without threads
• build scalable event-driven network servers in Ruby
• perform non-blocking I/O for file uploads
• run thousands of concurrent tasks per process
• replace callback-based async code with fiber-based concurrency
• add parallelism with multi-thread/process containers

When to choose

• you need scalable concurrent I/O in Ruby with a clean synchronous-looking API
• your Ruby app is I/O-bound and would benefit from non-blocking operations
• you want fiber-based concurrency without callback complexity

When to avoid

• you need CPU-bound parallelism rather than I/O concurrency
• your project targets a language other than Ruby
• you need a full async web framework rather than an I/O foundation

Facets

library · maturity stable

concurrency http-server developer-tools developer-tools backend web-development performance ruby cross-platform event-driven fiber-based-concurrency reactor io non-blocking

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markdown · JSON · MCP: product_card(name="socketry/async")