weseek__growi/apps/app/src/features/opentelemetry/server/anonymization/anonymize-http-requests.ts

import type { InstrumentationConfigMap } from '@opentelemetry/auto-instrumentations-node';

import { anonymizationModules } from './handlers';

export const httpInstrumentationConfig: InstrumentationConfigMap['@opentelemetry/instrumentation-http'] = {
  startIncomingSpanHook: (request) => {
    // Get URL from IncomingMessage (server-side requests)
    const incomingRequest = request;
    const url = incomingRequest.url || '';

    const attributes = {};

    // Use efficient module-based approach
    for (const anonymizationModule of anonymizationModules) {
      if (anonymizationModule.canHandle(url)) {
        const moduleAttributes = anonymizationModule.handle(incomingRequest, url);
        if (moduleAttributes != null) {
          Object.assign(attributes, moduleAttributes);
        }
      }
    }

    return attributes;
  },
};