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53 lines
2.1 KiB
TypeScript
53 lines
2.1 KiB
TypeScript
import { TraceState } from './trace_state';
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/**
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* A SpanContext represents the portion of a {@link Span} which must be
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* serialized and propagated along side of a {@link Baggage}.
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*/
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export interface SpanContext {
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/**
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* The ID of the trace that this span belongs to. It is worldwide unique
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* with practically sufficient probability by being made as 16 randomly
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* generated bytes, encoded as a 32 lowercase hex characters corresponding to
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* 128 bits.
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*/
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traceId: string;
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/**
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* The ID of the Span. It is globally unique with practically sufficient
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* probability by being made as 8 randomly generated bytes, encoded as a 16
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* lowercase hex characters corresponding to 64 bits.
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*/
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spanId: string;
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/**
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* Only true if the SpanContext was propagated from a remote parent.
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*/
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isRemote?: boolean;
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/**
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* Trace flags to propagate.
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*
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* It is represented as 1 byte (bitmap). Bit to represent whether trace is
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* sampled or not. When set, the least significant bit documents that the
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* caller may have recorded trace data. A caller who does not record trace
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* data out-of-band leaves this flag unset.
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*
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* see {@link TraceFlags} for valid flag values.
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*/
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traceFlags: number;
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/**
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* Tracing-system-specific info to propagate.
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*
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* The tracestate field value is a `list` as defined below. The `list` is a
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* series of `list-members` separated by commas `,`, and a list-member is a
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* key/value pair separated by an equals sign `=`. Spaces and horizontal tabs
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* surrounding `list-members` are ignored. There can be a maximum of 32
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* `list-members` in a `list`.
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* More Info: https://www.w3.org/TR/trace-context/#tracestate-field
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*
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* Examples:
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* Single tracing system (generic format):
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* tracestate: rojo=00f067aa0ba902b7
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* Multiple tracing systems (with different formatting):
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* tracestate: rojo=00f067aa0ba902b7,congo=t61rcWkgMzE
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*/
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traceState?: TraceState;
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}
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//# sourceMappingURL=span_context.d.ts.map
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