@sentry/types/types/tracing.d.ts

import type { DynamicSamplingContext } from './envelope';
export type TracePropagationTargets = (string | RegExp)[];
/**
 * `PropagationContext` represents the data from an incoming trace. It should be constructed from incoming trace data,
 * usually represented by `sentry-trace` and `baggage` HTTP headers.
 *
 * There is always a propagation context present in the SDK (or rather on Scopes), holding at least a `traceId`. This is
 * to ensure that there is always a trace we can attach events onto, even if performance monitoring is disabled. If
 * there was no incoming `traceId`, the `traceId` will be generated by the current SDK.
 */
export interface PropagationContext {
    /**
     * Either represents the incoming `traceId` or the `traceId` generated by the current SDK, if there was no incoming trace.
     */
    traceId: string;
    /**
     * Represents the execution context of the current SDK. This acts as a fallback value to associate events with a
     * particular execution context when performance monitoring is disabled.
     *
     * The ID of a current span (if one exists) should have precedence over this value when propagating trace data.
     */
    spanId: string;
    /**
     * Represents the sampling decision of the incoming trace.
     *
     * The current SDK should not modify this value!
     */
    sampled?: boolean;
    /**
     * The `parentSpanId` denotes the ID of the incoming client span. If there is no `parentSpanId` on the propagation
     * context, it means that the the incoming trace didn't come from a span.
     *
     * The current SDK should not modify this value!
     */
    parentSpanId?: string;
    /**
     * An undefined dsc in the propagation context means that the current SDK invocation is the head of trace and still free to modify and set the DSC for outgoing requests.
     *
     * The current SDK should not modify this value!
     */
    dsc?: Partial<DynamicSamplingContext>;
}
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