Migrate from 7.x to 8.x

Learn about migrating from Sentry JavaScript SDK 7.x to 8.x

The main goal of version 8 is to improve our performance monitoring APIs, integrations API, and ESM support. This version is breaking because we removed deprecated APIs, restructured npm package contents, and introduced new dependencies on OpenTelemetry.

Before updating to 8.x of the SDK, we recommend upgrading to the latest version of 7.x. To fix most of the deprecations on 7.x, you can use the @sentry/migr8 codemod to automatically update your SDK usage. @sentry/migr8 requires Node 18+.

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npx @sentry/migr8@latest

Our migration tool will let you select which updates to run, and automatically update your code. In some cases, we cannot automatically change code for you. These will be marked with a TODO(sentry) comment instead. Make sure to review all code changes after running @sentry/migr8! For more details on the deprecations, see our docs on Deprecations in 7.x. Despite having @sentry/migr8, we still recommend reading the migration guide, since @sentry/migr8 does not cover all of the changes needed to migrate.

8.x simplifies Sentry SDK initialization and makes several internal improvements.

We recommend you read through all the Important Changes as they affect all SDK users. The Other Changes linked below only affect users who have more customized instrumentation. There is also a Troubleshooting section for common issues.

We also have a detailed migration guide on GitHub, which has a comprehensive list of all changes alongside the source code of the SDK.

With 8.x, @sentry/bun has been completely overhauled. It is now powered by OpenTelemetry under the hood. You do not need to know or understand what OpenTelemetry is in order to use Sentry. We set up OpenTelemetry under the hood. If you use OpenTelemetry-native APIs to start spans, Sentry will pick up everything automatically.

To migrate your Bun app to Sentry Bun SDK 8.x, you need to make the following changes:

  1. Move your Sentry.init call so that it is called before any other require/import statements.

Due to the way that auto instrumentation works in 8.x of the Sentry Bun SDK, it is required that you initialize Sentry before you require or import any other package. Any package that is required/imported before Sentry is initialized may not be correctly auto-instrumented.

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const Sentry = require('@sentry/bun');

Sentry.init({
  // ...
});

// everything else
  1. Remove any performance related integrations

All performance auto-instrumentation will be automatically enabled if the package is found. You do not need to add any integration yourself, and autoDiscoverNodePerformanceMonitoringIntegrations() has also been removed.

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const Sentry = require('@sentry/bun');

Sentry.init({
  dsn: "https://examplePublicKey@o0.ingest.sentry.io/0",
  tracesSampleRate: 1.0,
});

We now support the following integrations out of the box with 0 configuration:

  • httpIntegration: Automatically instruments Node http and https standard libraries
  • nativeNodeFetchIntegration: Automatically instruments top level fetch and undici
  • expressIntegration: Automatically instruments Express.js
  • fastifyIntegration: Automatically instruments Fastify
  • hapiIntegration: Automatically instruments Hapi
  • graphqlIntegration: Automatically instruments GraphQL
  • mongoIntegration: Automatically instruments MongoDB
  • mongooseIntegration: Automatically instruments Mongoose
  • mysqlIntegration: Automatically instruments MySQL
  • mysql2Integration: Automatically instruments MySQL2
  • nestIntegration: Automatically instruments Nest.js
  • postgresIntegration: Automatically instruments PostgreSQL
  • prismaIntegration: Automatically instruments Prisma
  • connectIntegration: Automatically instruments Connect

For any non-HTTP scenarios (e.g. websockets or a scheduled job), you'll have to manually ensure request isolation by wrapping the function with Sentry.withIsolationScope(). Previously we recommended you use Sentry.runWithAsyncContext for this but that has been removed in 8.x.

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const Sentry = require('@sentry/node');

function myScheduledJob() {
  return Sentry.withIsolationScope(async () => {
    await doSomething();
    await doSomethingElse();
    return { status: 'DONE' };
  });
}

This way, anything happening inside of this function will be isolated, even if they run concurrently.

The Custom Instrumentation API for Tracing has been revamped in 8.x. New methods have been introduced, and startTransaction and span.startChild has been removed. See the new Tracing APIs docs for more information.

If you want to customize the OpenTelemetry setup with your Bun SDK in 8.x, see the docs about using OpenTelemetry with 8.x

The deepReadDirSync method has been removed as an export from the SDK. There is no replacement API.

The Sentry tRPC middleware got moved from Sentry.Handlers.trpcMiddleware() to Sentry.trpcMiddleware().

The SDK no longer filters out health check transactions by default. Instead, they are sent to Sentry but still dropped by the Sentry backend by default. You can disable dropping them in your Sentry project settings. If you still want to drop specific transactions within the SDK you can either use the ignoreTransactions SDK option.

The Hub has been a very important part of the Sentry SDK API up until now. Hubs were the SDK's "unit of concurrency" to keep track of data across threads and to scope data to certain parts of your code. Because it is overly complicated and confusing to power users, it is going to be replaced by a set of new APIs: the "new Scope API". For now Hub and getCurrentHub are still available, but it will be removed in the next major version.

See Deprecate Hub for details on how to replace existing usage of the Hub APIs.

In v7, integrations are classes and can be added as e.g. integrations: [new Sentry.Replay()]. In v8, integrations will not be classes anymore, but instead functions. Both the use as a class, as well as accessing integrations from the Integrations.XXX hash, is deprecated in favor of using the new functional integrations. For example, new Integrations.LinkedErrors() becomes linkedErrorsIntegration().

For a list of integrations and their replacements, see the 7.x deprecation documentation.

The top level Sentry.configureScope function has been removed. Instead, you should use the Sentry.getCurrentScope() to access and mutate the current scope.

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- Sentry.configureScope((scope) => {
-  scope.setTag("key", "value");
- });
+ Sentry.getCurrentScope().setTag("key", "value");

tracingOrigins is now removed in favor of the tracePropagationTargets option. The tracePropagationTargets option should be set in the Sentry.init() options, or in your custom Clients option if you create them.

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Sentry.init({
  dsn: "__DSN__",
  integrations: [Sentry.browserTracingIntegration()],
  tracePropagationTargets: ["localhost", "example.com"],
});

In 7.x, you had to enable the metrics aggregator by setting the _experiments option to { metricsAggregator: true }. In addition for browser environments you had to add the metricsAggregatorIntegration to the integrations array.

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// v7 - Server (Node/Deno/Bun)
Sentry.init({
  dsn: "https://examplePublicKey@o0.ingest.sentry.io/0",
  _experiments: {
    metricsAggregator: true,
  },
});

// v7 - Browser
Sentry.init({
  dsn: "https://examplePublicKey@o0.ingest.sentry.io/0",
  integrations: [Sentry.metricsAggregatorIntegration()],
});

Sentry.metrics.increment("my_metric");

In 8.x no additional configuration is needed to use metrics APIs.

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// v8
Sentry.init({
  dsn: "https://examplePublicKey@o0.ingest.sentry.io/0",
});

Sentry.metrics.increment("my_metric");

In 7.x we deprecated the Severity enum in favor of using the SeverityLevel type as this helps save bundle size, and this has been removed in 8.x. You should now use the SeverityLevel type directly.

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- import { Severity } from '@sentry/types';
+ import { SeverityLevel } from '@sentry/types';

- const level = Severity.error;
+ const level: SeverityLevel = "error";

In 8.x, we are removing the spanStatusfromHttpCode function in favor of getSpanStatusFromHttpCode.

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- const spanStatus = spanStatusfromHttpCode(200);
+ const spanStatus = getSpanStatusFromHttpCode(200);

Errors with framesToPop property will have the specified number of frames removed from the top of the stack. This changes compared to the v7 where the property framesToPop was used to remove top n lines from the stack string.

In 8.x, we are no longer exporting the Span class from SDK packages. Internally, this class is now called SentrySpan, and it is no longer meant to be used by users directly.

The send method on the Transport interface now always requires a TransportMakeRequestResponse to be returned in the promise. This means that the void return type is no longer allowed.

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// v7
 interface Transport {
-  send(event: Event): Promise<void | TransportMakeRequestResponse>;
+  send(event: Event): Promise<TransportMakeRequestResponse>;
 }

The extraErrorDataIntegration integration now looks at error.cause by default.

Instead of an transactionContext being passed to the tracesSampler callback, the callback will directly receive name and attributes going forward. Note that the attributes are only the attributes at span creation time, and some attributes may only be set later during the span lifecycle (and thus not be available during sampling).

getClient() now always returns a client if Sentry.init() was called. For cases where this may be used to check if Sentry was actually initialized, using getClient() will thus not work anymore. Instead, you should use the new Sentry.isInitialized() utility to check this.

In 8.x, we are removing the addGlobalEventProcessor function in favor of addEventProcessor.

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- Sentry.addGlobalEventProcessor((event) => {
+ Sentry.getGlobalScope().addEventProcessor((event) => {
   delete event.extra;
   return event;
 });

@sentry/integrations has been removed and will no longer be published. We moved pluggable integrations from their own package (@sentry/integrations) to @sentry/bun. In addition they are now functions instead of classes.

Integrations that are now exported from @sentry/bun for server-side init:

  • captureConsoleIntegration (CaptureConsole)
  • debugIntegration (Debug)
  • extraErrorDataIntegration (ExtraErrorData)
  • rewriteFramesIntegration (RewriteFrames)
  • sessionTimingIntegration (SessionTiming)
  • dedupeIntegration (Dedupe) - Note: enabled by default, not pluggable

The Transaction integration has been removed from @sentry/integrations. There is no replacement API.

If you are getting errors from within the Sentry SDK that it is trying to access certain functions that are not available, for example "... is not a function", it is possible that there are misaligned versions installed.

The Sentry JavaScript Bundler Plugins (@sentry/webpack-plugin, @sentry/vite-plugin, @sentry/esbuild-plugin, @sentry/rollup-plugin) used to depend on certain Sentry SDK packages on version 7 wich may clash with version 8 of the SDK.

The recommendation is to upgrade the JavaScript Bundler Plugin packages to at least version 2.14.2 which will no longer include dependencies on v7 of the Sentry JavaScript SDK.

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