로그 마스킹: 민감한 데이터를 로그에서 빼기

npm install --save-exact @logbrew/sdk@0.1.28

import assert from "node:assert/strict";
import { randomUUID } from "node:crypto";
import { LogBrewClient, SdkError } from "@logbrew/sdk";

try {
  const client = LogBrewClient.create({
    apiKey: "local-preview-only",
    sdkName: "privacy-check",
    sdkVersion: "0.1.28",
    automaticDelivery: false
  });

  function recordCheckoutFailure(input) {
    const status = input?.status;
    if (!Number.isInteger(status) || status < 400 || status > 599) {
      return false;
    }
    client.log(randomUUID(), new Date().toISOString(), {
      message: "checkout.failed",
      level: "error",
      metadata: { route: "/checkout", status }
    });
    return true;
  }

  const excludedValue = "SYNTHETIC_PRIVATE_VALUE";
  assert.equal(recordCheckoutFailure({
    status: 503,
    authorization: excludedValue,
    body: excludedValue
  }), true);
  assert.equal(recordCheckoutFailure({ status: excludedValue }), false);

  const preview = client.previewJson();
  const batch = JSON.parse(preview);
  assert.equal(batch.events.length, 1);
  assert.equal(preview.includes(excludedValue), false);
  assert.deepEqual(batch.events[0].attributes.metadata, {
    route: "/checkout",
    status: 503
  });
  client.purgePendingEvents();
  console.log(JSON.stringify({
    ok: true,
    checked_events: 1,
    excluded_value_found: false
  }));
} catch (error) {
  console.error(JSON.stringify({
    ok: false,
    error: error instanceof SdkError ? error.code : "privacy_check_failed"
  }));
  process.exitCode = 1;
}

node safe-capture.mjs

{"ok":true,"checked_events":1,"excluded_value_found":false}