sentry

sentry

Error monitoring and performance tracking with Sentry.

SDK setup

• Sentry.init with DSN and environment
• JavaScript: @sentry/react, @sentry/node
• Python: sentry-sdk with integrations
• Release and environment tagging

Error tracking

• Automatic error capture
• Manual capture with Sentry.captureException
• Breadcrumbs for user actions
• beforeSend for filtering and enrichment

Source maps

• Upload source maps to Sentry
• sentry-cli releases files
• Webpack/Vite plugin for auto-upload
• Error grouping with fingerprint

Performance

• Tracing: transactions and spans
• Automatic browser/DB instrumentation
• Custom spans for critical paths
• Performance thresholds and alerts

Alerts and workflows

• Issue alert rules and conditions
• Webhook and Slack/email notifications
• Metric alerts for regression detection
• Dashboard for team visibility