← Back to all languages

Kotlin error tracking

Know when your Kotlin app breaks, before your users do

A typed, coroutine-backed rewrite of the Java client, for JVM server-side apps. Self-hosted, so nothing about a Kotlin app's errors or its users' data ever leaves infrastructure you control.

Install

cd sdks/kotlin && mvn install

<dependency>
  <groupId>com.forgeops</groupId>
  <artifactId>tracker-kt</artifactId>
</dependency>

ForgeOpsTracker.init { config -> config.dsn = "https://<api_key>@your-forgeops-host/api/v1/events" }

A typed, coroutine-backed rewrite of the Java client, for JVM server-side apps.

Every client reports the same shape

Wherever it comes from, an event arrives with an exception class, a message, and a backtrace, plus whatever environment/release/server context that client can gather on its own. ForgeOps fingerprints and groups on the first three, so a Kotlin app's issues list works exactly the same way every other language's does: report the same bug a thousand times and it's still one row, not a thousand.

No agent, no sidecar: it's a plain HTTPS POST to your own ForgeOps instance's ingestion API, so nothing about a Kotlin app's traffic ever leaves infrastructure you control.


Works with your framework


The Kotlin client hooks in at the framework level, not by wrapping individual calls, so nothing about how you already write Kotlin code has to change.


Servlet 5+ / Spring MVC / Boot

The same JVM integrations as sdks/java apply here too, since a servlet filter or a @ControllerAdvice bean is still a real JVM type underneath.

Plain JVM apps

captureException reports directly from a catch block, with optional context.

What it looks like

The issue list

Every Kotlin issue reported into a project shows up here: title, status, assignee, event count, and when it was last seen, the same columns as any other language's project.

The issue list for a project reporting from a Kotlin app

The issue detail

Every occurrence keeps its own timestamp, environment, release, and server, plus the backtrace exactly as Kotlin reported it, expandable per occurrence rather than flattened into one generic stack.

A Kotlin issue's detail page, showing its fully-qualified exception class and StackTraceElement backtrace

Alerting

A new Kotlin issue, a regression, or a spike past a threshold you set can reach Slack, email, SMS, a voice call, or a generic webhook, configured per project, per trigger.

Notification rules configured per trigger and channel, e.g. a new issue to Slack, a regression to email

Heartbeats

For the failure mode error tracking can't see on its own: a Kotlin cron job or recurring task that's supposed to run but silently stopped. Each heartbeat gets its own ping URL and its own grace period before it alerts.

A heartbeat's ping URL and status, showing its expected interval, grace period, and last check-in

Questions

Do I need to change how I already handle errors?

No. Every client hooks the framework's own exception handling directly, the same way the install snippet above shows -- your own logs, error pages, and rescue blocks keep working exactly as they did before. ForgeOps just also finds out about it.

Where does the data actually go?

Straight to your own ForgeOps instance over plain HTTPS. No agent, no sidecar, no third-party ingestion service in between -- nothing about your app's traffic or its users' data ever leaves infrastructure you control.

What happens if the same bug fires a thousand times?

It's fingerprinted from its exception class, message, and backtrace, so a thousand reports of the same bug still show up as one issue with an event count of 1,000, not a thousand separate rows to dig through.

Is anything scrubbed before it's stored?

Yes. Emails, credit card numbers, and known API key/token formats are redacted out of every event before it's even written, on every plan, with room for per-project custom field names on top of the defaults.

Try it with your own Kotlin app

Free plan included, no credit card required.

Get started free