@bugsnag/core-performance/dist/probability-fetcher.js

Core performance client

// the time to wait before retrying a failed request
const RETRY_MILLISECONDS = 30 * 1000;
class ProbabilityFetcher {
    constructor(delivery, apiKey) {
        this.delivery = delivery;
        this.payload = {
            body: { resourceSpans: [] },
            headers: {
                'Bugsnag-Api-Key': apiKey,
                'Content-Type': 'application/json',
                'Bugsnag-Span-Sampling': '1.0:0'
            }
        };
    }
    async getNewProbability() {
        // keep making requests until we get a new probability value from the server
        while (true) {
            const response = await this.delivery.send(this.payload);
            // in theory this should always be present, but it's possible the request
            // fails or there's a bug on the server side causing it not to be returned
            if (response.samplingProbability !== undefined) {
                return response.samplingProbability;
            }
            await this.timeBetweenRetries();
        }
    }
    timeBetweenRetries() {
        return new Promise(resolve => {
            setTimeout(resolve, RETRY_MILLISECONDS);
        });
    }
}

export { ProbabilityFetcher as default };