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Top 9 Ruby Async Projects
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I'm optimistic about Ruby's async story with the work Samuel Williams has been doing. https://github.com/socketry/falcon is the tip of the iceberg, which is built on top of https://github.com/socketry/protocol-http2 and a not of other repos at https://github.com/socketry.
It's inspiring other's in the community to think of interesting applications, like using the HTML slot API to stream responses to HTML without JS. https://x.com/joeldrapper/status/1841984952407110037
I know other frameworks have had asynchronous IO support forever, but it's finally coming to Ruby that seems like it will stick around and be well supported.
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Project mention: Building a Multi-Connection Redis Server with Ruby's Async Library [Part 1] | dev.to | 2025-02-26
Recently I've started Codecrafters' Build your own Redis (which I highly recommend!). One of the first steps is to make a TCP server that can accept more than one connection. I noticed that all the provided solutions use threads or IO#Select, and none of them use a fiber-based solution with Async. In this really short article, I'll show how one could achieve the result using Async.
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Project mention: Persistent Redis Connections in Sidekiq with Async::Redis: A Deep Dive. | dev.to | 2024-07-18
Besides Ruby's support for the fiber scheduler, for some I/O operations, you might use specific gems, like Async::Redis. You can still use other Ruby gems that use native Ruby I/O with Async and they will give you non-blocking I/O as well, but there are two reasons to prefer Async::Redis:
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async-pool
Provides support for connection pooling both singleplex and multiplex resources. (by socketry)
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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).
Ruby Async discussion
Ruby Async related posts
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Building a Multi-Connection Redis Server with Ruby's Async Library [Part 1]
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Rack for Ruby: Socket Hijacking
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Persistent Redis Connections in Sidekiq with Async::Redis: A Deep Dive.
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Ask HN: What is your go-to stack for the web?
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EventMachine Performance Spikes
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Is ruby really slow?
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Show HN: Goru, an experimental, Go-inspired concurrency library for Ruby
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A note from our sponsor - SaaSHub
www.saashub.com | 13 May 2025
Index
What are some of the best open-source Async projects in Ruby? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | falcon | 2,774 |
| 2 | Async Ruby | 2,249 |
| 3 | render_async | 1,077 |
| 4 | telegram-bot | 650 |
| 5 | async-redis | 87 |
| 6 | async-await | 77 |
| 7 | nostr | 27 |
| 8 | async-pool | 24 |
| 9 | rails_async_methods | 13 |
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