@bugsnag/core-performance/dist/remote-parent-context.js

Core performance client

import { scaleProbabilityToMatchSamplingRate } from './sampler.js';
import { isSpanContext } from './validation.js';

const TRACE_PERENT_REGEX = /^00-([0-9a-f]{32})-([0-9a-f]{16})-[0-9]{2}$/;
class RemoteParentContext {
    constructor(parentContext) {
        this.id = parentContext.id;
        this.traceId = parentContext.traceId;
    }
    encodeAsTraceParent() {
        return RemoteParentContext.toTraceParentString(this);
    }
    static parseTraceParent(encodedString) {
        const result = TRACE_PERENT_REGEX.exec(encodedString);
        if (!result) {
            return undefined;
        }
        const [, traceId, id] = result;
        return new RemoteParentContext({ id, traceId });
    }
    static toTraceParentString(context) {
        let sampled = true;
        if (isSpanContext(context)) {
            const scaledProbability = scaleProbabilityToMatchSamplingRate(context.samplingProbability);
            sampled = context.samplingRate <= scaledProbability;
        }
        return `00-${context.traceId}-${context.id}-${sampled ? '01' : '00'}`;
    }
}

export { RemoteParentContext as default };