JS-style async/await has finally landed in Clojure!
• async/await implementation on top of core.async
• Follows the JavaScript Promise API and semantics as close as possible, so you already know how to use it
• Comes with blocking/await and compute/await as well, for asynchronous blocking and compute tasks
• async/wait for when you need to uncolor your code
• First-class error handling with implicit try/catch/finally and threading friendly helper catch, then , handle, finally, etc.
• First-class cancellation (cancel!, cancelled?)
• Macros for painless flow: ado, alet, clet
Question not answered in the readme: what benefits do you see with this programming style compared to the coming structured programming baked in the jvm?
I could already answer to me that it works today without requiring the preview flag. Or its similarity with JS
But I am mostly interested in your opinion
Great work anyway. Waiting for my next home coding session to try it on personal projects
I’m not too sure what the structured concurrency of Java will end up looking like, and not sure how ergonomic they will be in Clojure. So I can’t fully compare to that.
For me, I was going with familiarity, if you come from C#, JS, or many other languages, you know this style already, it’s nice to just be able to use what you know as-is. So it was about giving more choice. Clojure already has other styles, raw java concurrency, core.async CSP, future/agent and such, but it was missing this quite common approach.
I also started work on this library quite a few years ago, when Java’s lightweight threads were not even available in preview haha. And then I had kids, so it took a lot longer to be released.
Announcing: async-style 0.1.0 
, start hacking, and let async-powered Clojure code fly! 