Usage
Learn more about passing configuration options to a static Sentry#init method Sentry.
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<dependency>
<groupId>io.sentry</groupId>
<artifactId>sentry</artifactId>
<version>7.19.1</version>
</dependency>
For other dependency managers see the central Maven repository.
When Sentry is used in manual way, configuration options must be passed to a static Sentry#init
method:
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import io.sentry.Sentry;
public class MyClass {
public static void main(String... args) {
Sentry.init(options -> {
// NOTE: Replace the test DSN below with YOUR OWN DSN to see the events from this app in
// your Sentry project/dashboard
options.setDsn("https://examplePublicKey@o0.ingest.sentry.io/0");
// All events get assigned to the release. See more at
// https://docs.sentry.io/workflow/releases/
options.setRelease("io.sentry.samples.console@4.2.0+1");
// Modifications to event before it goes out. Could replace the event altogether
options.setBeforeSend((event, hint) -> {
// Drop an event altogether:
if (event.getTag("SomeTag") != null) {
return null;
}
return event;
});
// Allows inspecting and modifying, returning a new or simply rejecting (returning null)
options.setBeforeBreadcrumb((breadcrumb, hint) -> {
// Don't add breadcrumbs with message containing:
if (breadcrumb.getMessage() != null
&& breadcrumb.getMessage().contains("bad breadcrumb")) {
return null;
}
return breadcrumb;
});
// Configure the background worker which sends events to sentry:
// Wait up to 5 seconds before shutdown while there are events to send.
options.setShutdownTimeout(5000);
// Enable SDK logging with Debug level
options.setDebug(true);
// To change the verbosity, use:
options.setDiagnosticLevel(
// By default it's DEBUG.
// A good option to have SDK debug log in prod is to use only level
// ERROR here.
SentryLevel.ERROR
);
// Exclude frames from some packages from being "inApp" so are hidden by default in Sentry
// UI:
options.addInAppExclude("org.jboss");
});
}
}
Find more configuration options in the Configuration section.
To report an event manually you need to initialize a Sentry
class. It is recommended that you use the static API via the Sentry
class, but you can also construct and manage your own IHub
instance. An example of each style is shown below:
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import io.sentry.IHub;
import io.sentry.Hub;
import io.sentry.Sentry;
import io.sentry.protocol.User;
public class MyClass {
private static IHub hub;
public static void main(String... args) {
// NOTE: Replace the test DSN below with YOUR OWN DSN
Sentry.init(options -> {
options.setDsn("https://examplePublicKey@o0.ingest.sentry.io/0");
});
// It is possible to go around the static Sentry API, which means
// you are responsible for making the IHub instance available
// to your code.
SentryOptions options = new SentryOptions();
options.setDsn("https://examplePublicKey@o0.ingest.sentry.io/0");
hub = new Hub(options);
MyClass myClass = new MyClass();
myClass.logWithStaticAPI();
myClass.logWithInstanceAPI();
}
/**
* An example method that throws an exception.
*/
void unsafeMethod() {
throw new UnsupportedOperationException("You shouldn't call this!");
}
/**
* Examples using the (recommended) static API.
*/
void logWithStaticAPI() {
// Note that all fields set on the scope are optional. Scope data is copied onto
// all future events in the current scope (until the scope is cleared).
// Record a breadcrumb in the current scope. By default the last 100 breadcrumbs are kept.
Sentry.addBreadcrumb("User made an action");
// Set the user in the current scope.
User user = new User();
user.setEmail("hello@sentry.io");
Sentry.setUser(user);
// Add extra data to future events in this scope.
Sentry.setExtra("extra", "thing");
// Add an additional tag to future events in this scope.
Sentry.setTag("tagName", "tagValue");
// This sends a simple event to Sentry using the statically stored instance
// that was created in the ``main`` method.
Sentry.captureMessage("This is a test");
try {
unsafeMethod();
} catch (Exception e) {
// This sends an exception event to Sentry using the statically stored instance
// that was created in the ``main`` method.
Sentry.captureException(e);
}
}
/**
* Examples that use the SentryClient instance directly.
*/
void logWithInstanceAPI() {
// Record a breadcrumb in the current scope. By default the last 100 breadcrumbs are kept.
hub.addBreadcrumb("User made an action");
// Set the user in the current scope.
User user = new User();
user.setEmail("hello@sentry.io");
hub.setUser(user);
// This sends a simple event to Sentry.
hub.captureMessage("This is a test");
try {
unsafeMethod();
} catch (Exception e) {
// This sends an exception event to Sentry.
hub.captureException(e);
}
}
}
For more complex messages, you’ll need to build an SentryEvent
object:
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import io.sentry.Sentry;
import io.sentry.SentryEvent;
import io.sentry.SentryLevel;
import io.sentry.protocol.Message;
public class MyClass {
public static void main(String... args) {
// NOTE: Replace the test DSN below with YOUR OWN DSN
Sentry.init(options -> {
options.setDsn("https://examplePublicKey@o0.ingest.sentry.io/0");
});
}
void unsafeMethod() {
throw new UnsupportedOperationException("You shouldn't call this!");
}
void logSimpleMessage() {
// This sends an event to Sentry.
SentryEvent event = new SentryEvent();
Message message = new Message();
message.setMessage("This is a test");
event.setMessage(message);
event.setLevel(SentryLevel.INFO);
event.setLogger(MyClass.class.getName());
Sentry.captureEvent(event);
}
void logException() {
try {
unsafeMethod();
} catch (Exception e) {
// This sends an exception event to Sentry.
SentryEvent event = new SentryEvent();
Message message = new Message();
message.setMessage("Exception caught");
event.setMessage(message);
event.setLevel(SentryLevel.INFO);
event.setLogger(MyClass.class.getName());
event.setThrowable(e);
Sentry.captureEvent(event);
}
}
}
You can also implement an EventProcessor
that is able to automatically enhance outgoing events.
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import io.sentry.EventProcessor;
import io.sentry.IHub;
import io.sentry.Sentry;
import io.sentry.SentryEvent;
import io.sentry.Hint
import io.sentry.protocol.Message;
public class MyClass {
public void myMethod() {
// Add an `EventProcessor` to the current scope. Note that
// this helper will process *all* future events in this scope.
Sentry.configureScope(scope -> {
scope.addEventProcessor(new EventProcessor() {
@Override
public SentryEvent process(SentryEvent event, Hint hint) {
Message message = new Message();
message.setMessage("Overwritten by myEventBuilderHelper!");
event.setMessage(message);
return event;
}
});
});
// Send an event to Sentry. During construction of the event the message
// body will be overwritten by the event processor.
Sentry.captureMessage("Hello, world!");
}
}
Help improve this content
Our documentation is open source and available on GitHub. Your contributions are welcome, whether fixing a typo (drat!) or suggesting an update ("yeah, this would be better").
Our documentation is open source and available on GitHub. Your contributions are welcome, whether fixing a typo (drat!) or suggesting an update ("yeah, this would be better").