| 1 | /**
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| 2 | * SpanContext represents Span state that must propagate to descendant Spans
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| 3 | * and across process boundaries.
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| 4 | *
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| 5 | * SpanContext is logically divided into two pieces: the user-level "Baggage"
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| 6 | * (see setBaggageItem and getBaggageItem) that propagates across Span
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| 7 | * boundaries and any Tracer-implementation-specific fields that are needed to
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| 8 | * identify or otherwise contextualize the associated Span instance (e.g., a
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| 9 | * <trace_id, span_id, sampled> tuple).
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| 10 | */
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| 11 | export class SpanContext {
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| 12 | // The SpanContext is entirely implementation dependent
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| 13 |
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| 14 | /**
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| 15 | * Returns a string representation of the implementation internal trace ID.
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| 16 | *
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| 17 | * @returns {string}
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| 18 | */
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| 19 | toTraceId(): string {
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| 20 | return '';
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| 21 | }
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| 22 |
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| 23 | /**
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| 24 | * Returns a string representation of the implementation internal span ID.
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| 25 | *
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| 26 | * @returns {string}
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| 27 | */
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| 28 | toSpanId(): string {
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| 29 | return '';
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| 30 | }
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| 31 | }
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| 32 |
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| 33 | export default SpanContext;
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