Tracking errors and slowdowns across JS applications using Sentry

Sentry can be integrated with various types of applications, including React front-end applications and Node Express back-end applications. It supports multiple frameworks and languages, as detailed in Sentry's documentation.

Sentry provides performance monitoring by capturing transactions and spans during application activity. It allows developers to analyze web vitals, user misery scores, and detailed transaction data to identify performance bottlenecks and optimize the user experience.

Source maps are used to map minified production-level code back to its original source code, making stack traces human-readable. Uploading source maps to Sentry allows developers to understand and debug errors more effectively by providing meaningful stack traces.

Sentry allows users to set up targeted alerts that notify team members through various channels, such as Slack, email, PagerDuty, and Microsoft Teams. These alerts can be customized based on specific criteria, such as the number of events or the severity of the issue.

A distributed trace in Sentry is a way to trace activity across multiple applications during a single request. It provides a unified view of transactions and spans, allowing developers to understand the flow of requests and identify performance issues across different services.

Developers can add custom data to transactions and spans in Sentry using the Sentry SDK. This includes setting custom tags, spans, and breadcrumbs to provide additional context and improve the debugging process.

Key features of Sentry's error tracking include capturing detailed error information, providing un-minified stack traces through source maps, offering context through tags and breadcrumbs, and enabling developers to trace errors from the front end to the back end.

Sentry offers Discover queries and dashboards for organizing and visualizing data. Discover queries allow users to slice and dice data based on specific criteria, while dashboards aggregate these queries and present them in various visual formats to help teams monitor and analyze application health.

Yes, Sentry is GDPR compliant. It offers data scrubbing tools to ensure that sensitive information, such as personally identifiable information, is not sent to or persisted in Sentry.

Sentry is designed for tracking errors and slowdowns across JavaScript applications. It helps developers monitor the health of an application from the front end to the back end, enabling them to track errors, monitor performance, and notify necessary team members.