How did you collect metrics and monitor errors on payment pages? How did you use Sentry?

To collect metrics and monitor errors on payment pages, a combination of tools is usually used:

• Metrics are collected through analytics systems (e.g., Google Analytics, Yandex.Metrica) and custom solutions using browser APIs.
• For error monitoring, Sentry is used, which automatically tracks JavaScript exceptions and errors.

Using Sentry on payment pages:

1. Initialize the Sentry SDK in the page code with the DSN.
2. Configure filters and tags for convenient error grouping (e.g., by user, session, payment type).
3. Send custom events and errors manually if needed to track specific situations.
4. Analyze errors in the Sentry dashboard with the ability to set up notifications (email, Slack).

Example of initializing Sentry on the frontend:

import * as Sentry from "@sentry/browser";

Sentry.init({
  dsn: "https://examplePublicKey@o0.ingest.sentry.io/0",
  environment: "production",
  release: "payment-page@1.0.0",
});

// Sending an error manually
try {
  // payment code
} catch (error) {
  Sentry.captureException(error);
}

Thus, Sentry helps quickly identify and respond to errors, improving stability and user experience on payment pages.