Interface Span

A manually-ended execution, see startSpan() / monitor.start()

interface Span {
    id: string;
    end(error?: unknown): void;
    run<R>(fn: () => R): R;
    setLabel(label: string): void;
}

Index

Properties

Methods

end run setLabel

Properties

`Readonly`id

id: string

Execution id ('' when the span is not recorded: disabled or sampled out)

Methods

end

end(error?: unknown): void
Finish the span; pass the error if the work failed. Calling twice is a no-op.
Parameters
- Optionalerror: unknown
Returns void
- Defined in core/optimized-performance-monitor.ts:242

run

run<R>(fn: () => R): R
Run fn as part of this span; tracked calls inside become its children
Type Parameters
- R
Parameters
- fn: () => R
Returns R
- Defined in core/optimized-performance-monitor.ts:240

setLabel

setLabel(label: string): void
Rename the span before it ends (e.g. once a route is known)
Parameters
- label: string
Returns void
- Defined in core/optimized-performance-monitor.ts:238