@grafana/faro-web-tracing/dist/esm/faroXhrInstrumentation.js

Faro web tracing implementation.

import { XMLHttpRequestInstrumentation } from '@opentelemetry/instrumentation-xml-http-request';
import { faro, getUrlFromResource } from '@grafana/faro-web-sdk';
export class FaroXhrInstrumentation extends XMLHttpRequestInstrumentation {
    constructor(config = {}) {
        super(config);
        const self = this;
        this.parentCreateSpan = self._createSpan.bind(this);
    }
    // Patching the parent's private method to handle url type string or URL
    _patchOpen() {
        return (original) => {
            const plugin = this;
            return function patchOpen(...args) {
                try {
                    const method = args[0];
                    let url = getUrlFromResource(args[1]);
                    plugin.parentCreateSpan(this, url, method);
                }
                catch (error) {
                    faro.internalLogger.error(error);
                }
                return original.apply(this, args);
            };
        };
    }
}
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