¶Scheduler

Recurring background jobs — the desktop counterpart to Laravel's Schedule. Register async tasks and they run on background tasks for the life of the app.

Add the provider and register jobs in a provider's boot:

use elyra::{App, Ctx, Provider};
use elyra::scheduler::{Scheduler, SchedulerProvider};
use std::time::Duration;

struct Jobs;
impl Provider for Jobs {
    fn boot(&self, ctx: &Ctx) {
        let sched = ctx.get::<Scheduler>();

        sched.every(Duration::from_secs(30), "poll", || async {
            // … refresh something …
        });
        sched.hourly("digest", || async { /* … */ });
        sched.daily("cleanup", || async { /* … */ });
    }
}

App::new().provider(SchedulerProvider).provider(Jobs).run()?;

¶API

Tasks are async closures (Fn() -> impl Future<Output = ()>).

¶Semantics

• Intervals are measured from app start, not wall-clock times — daily() means "every 24 hours", not "at midnight". (This keeps the scheduler dependency-free; wall-clock scheduling would need a calendar/timezone crate.)
• Jobs run in their own background task; a slow job doesn't delay the others.
• Registration works before or after the scheduler starts, so provider order doesn't matter.
• In-process only: jobs stop when the app exits (durable, cross-process scheduling is a server concern — see Askr).

¶Related

• Queue — one-off background jobs. · Container & providers