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How to run background jobs? (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by nothingness@lemmy.world to c/rust@lemmy.ml

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Is there any library for the queueing mechanism?

What's used by the most - Cron? But a task or rather script executed by Cron won't access to the context of an application. Meaning, a task will have be an independent unit. Whereas I want is a library to use inside a project such that it'll have access to everything.

Anything similar to Sidekiq exist in Rust?

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[–] SuddenlyBlowGreen@lemmy.world 6 points 1 year ago* (last edited 1 year ago) (1 children)

let mut scheduler = Scheduler::with_tz(chrono::Utc);

scheduler.every(10.minutes()).plus(30.seconds()).run(|| println!("Periodic task"));

scheduler.every(1.day()).at("3:20 pm").run(|| println!("Daily task")); 

scheduler.every(Tuesday).at("14:20:17").and_every(Thursday).at("15:00").run(|| println!("Biweekly task"));

Damn, that a really ingenious and intuitive use of the builder pattern.

Kudos to the devs!

[–] nothingness@lemmy.world 0 points 1 year ago (1 children)

Scheduler

what library is it from?

[–] SuddenlyBlowGreen@lemmy.world 1 points 1 year ago (1 children)

The clokwerk crate.

[–] peterprototypes@mastodon.social 0 points 1 year ago (1 children)

@SuddenlyBlowGreen @nothingness I recently needed that, but fuzzy. Like I want a task ran anywhere between 1PM and 2PM. Can this be accomplished with the clockwerk crate?

[–] SuddenlyBlowGreen@lemmy.world 1 points 1 year ago* (last edited 1 year ago)

You could schedule a task at 1 PM, then generate a random number between 0-60 inside that task, wait that many minutes, then launch the actual task.