If you don't know about the error, you can't fix it.
Most production errors are never reported by users. They silently fail, navigate away, or assume the problem is their fault. Error monitoring (Sentry) catches every unhandled error in production with full context — the stack trace, the user, the request details. Setting it up takes an hour.
No error monitoring in production — bugs are discovered when users report them, not when they happen
Error monitoring provides three things that logs don't:
Error grouping: Multiple occurrences of the same error are grouped into one issue. Not 5,000 separate log lines — one "TypeError: Cannot read properties of null" with 5,000 occurrences.
Context: When an error occurs, Sentry captures: the full stack trace, the URL, the browser, the user ID, the request parameters, and the state of the application at that moment. Everything needed to reproduce and fix the bug.
Alerting: Sentry sends an alert when a new error type appears or when an existing error spikes. You know about the bug in minutes, not when a user emails.
Sentry for Next.js:
npx @sentry/wizard@latest -i nextjs
Sentry Wizard configures: sentry.client.config.ts, sentry.server.config.ts, and next.config.ts for source map upload.
Source maps:
Source maps allow Sentry to display your original TypeScript source code in the error trace, not the minified/compiled output. Upload source maps during the build process.
User context:
When users are logged in, identify them in Sentry so errors can be traced to specific users:
Sentry.setUser({ id: user.id, email: user.email });
Error boundaries (React):
For frontend errors, Sentry's ErrorBoundary component catches React render errors and reports them with component context.
Performance monitoring (optional):
Sentry also monitors performance — slow API routes, slow database queries. The performance view shows P50/P95 response times and identifies regressions.
Sentry error monitoring integrated across frontend and backend, with alerts for new error types and weekly digest of error frequency
Sentry SDK
installation for Next.js (frontend + backend)
Source map upload
for readable stack traces
User identification
for user-attributed errors
Error boundaries
for graceful frontend error handling
Alert configuration
for new errors and spikes
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
Sentry error monitoring integrated across frontend and backend, with alerts for new error types and weekly digest of error frequency
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 setup is a defined integration. Fixed-price for installation, configuration, and alert setup.
Questions, answered.
Sentry free tier: 5,000 errors/month. Developer plan $26/month: 50,000 errors. Team plan $80/month: higher limits, performance monitoring. For most SaaS applications, the free tier or Developer plan is sufficient early on.
Logs (Datadog, Logtail) store every log statement. Sentry specifically captures exceptions and performance issues with rich context. Both serve different purposes; Sentry is the priority for knowing about errors.
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.