You can't fix errors you don't know about. Sentry tells you about every error before your users do.
Sentry error monitoring for Next.js applications — source maps, performance monitoring, error grouping, and the alerting that notifies the team when something breaks in production. Deployed correctly from day one.
Application deployed to production with no error monitoring — finding out about errors from user reports instead of automatic detection
Applications deployed without error monitoring are flying blind. The symptom: you find out about production bugs when users email support or churn. The fix — Sentry — takes an hour to implement correctly and permanently changes how visible production errors are.
The implementation decisions that determine whether Sentry is useful:
Source maps. Next.js compiles and minifies application code. Without source maps uploaded to Sentry, error stack traces show minified variable names (a.b is not a function in compiled code). With source maps, the same error shows the original TypeScript file and line number. Source map upload in the Next.js build process is required.
User context. Sentry events with user context (Sentry.setUser({ id, email })) allow filtering errors by user and understanding impact scope ("this error affected 47 users"). User context should be set after authentication.
Error boundaries. React error boundaries with Sentry capture uncaught errors in component trees. Sentry.ErrorBoundary is the recommended wrapper for production React applications.
Performance monitoring. Sentry traces identify slow API routes, slow database queries, and frontend performance issues. Transaction sampling (not 100% — typically 10–20% to manage costs) gives representative data.
Alert configuration. Sentry alerts configured for: new issues (first occurrence of a new error), issue frequency spikes, and performance degradation. Alerts sent to Slack or email.
Sentry integrated with source maps, error alerting, performance monitoring, and the issue grouping that makes debugging production errors fast
Next.js SDK integration
`@sentry/nextjs` configuration with `sentry.server.config.ts` and `sentry.client.config.ts`. Source map upload in `next.config.ts` via `withSentryConfig`.
User context
`Sentry.setUser()` called after Clerk authentication. User ID, email, and role attached to all events from authenticated sessions.
Error boundaries
`Sentry.ErrorBoundary` wrapping route-level components. Custom fallback UI for caught errors.
Performance tracing
Transaction sampling configured. Slow route and query detection. Custom spans for important application operations.
Alert configuration
Issue alerts for new and regressed errors. Performance alerts for P95 latency spikes. Slack notification integration.
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
Sentry integrated with source maps, error alerting, performance monitoring, and the issue grouping that makes debugging production errors fast
Three steps, every time.
The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.
Brief & discovery.
We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.
Build & ship.
Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.
Warranty & retainer.
30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.
Why Fixed-Price Matters Here
Sentry is part of every production application build. It's not optional.
Questions, answered.
Sentry is purpose-built for error monitoring and application performance with a developer-first experience. Datadog is broader infrastructure monitoring (servers, metrics, logs, APM). For most applications, Sentry is the right choice for error and performance monitoring. Datadog adds value when you need server infrastructure monitoring, log aggregation, and custom metrics alongside application monitoring.
Sentry's free plan includes 5,000 errors/month and 10,000 performance transactions/month — enough for most early-stage applications. Team plan ($26/month) for production applications with error volume above the free tier.
Included in every application build. No additional cost.
Tell Ryel about your project.
Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.