operator_catch

On error, switch to a recovery observable.

See Also

• RetryOperator - Resubscribe on error up to the configured retry count.
• IntoResultOperator - Capture next/error signals as Result values.
• LiftResultOperator - Split Result values into next and error signals.
• ErrorBoundaryOperator - Enforce Never as the error type to guard pipelines at compile time.

Example

cargo run -p rx_core --example operator_catch_example

let _s = concat((
    (1..=3).into_observable().map_never(),
    throw("error").map_never(),
))
.map(|i| i * 10)
.catch(|_error| IteratorObservable::new(90..=92))
.subscribe(PrintObserver::new("catch"));

Output:

catch - next: 10
catch - next: 20
catch - next: 30
catch - next: 90
catch - next: 91
catch - next: 92
catch - completed
catch - unsubscribed