inject loader

Author: chargome

packages/nextjs/src/config/loaders/index.ts

@@ -1,3 +1,4 @@
 export { default as valueInjectionLoader } from './valueInjectionLoader';
 export { default as prefixLoader } from './prefixLoader';
 export { default as wrappingLoader } from './wrappingLoader';
+export { default as moduleMetadataInjectionLoader } from './moduleMetadataInjectionLoader';

packages/nextjs/src/config/turbopack/constructTurbopackConfig.ts

@@ -1,8 +1,9 @@
 import { debug } from '@sentry/core';
+import * as path from 'path';
 import type { VercelCronsConfig } from '../../common/types';
 import type { RouteManifest } from '../manifest/types';
 import type { NextConfigObject, SentryBuildOptions, TurbopackMatcherWithRule, TurbopackOptions } from '../types';
-import { supportsNativeDebugIds } from '../util';
+import { supportsNativeDebugIds, supportsTurbopackRuleCondition } from '../util';
 import { generateValueInjectionRules } from './generateValueInjectionRules';
 
 /**
@@ -56,6 +57,32 @@ export function constructTurbopackConfig({
     newConfig.rules = safelyAddTurbopackRule(newConfig.rules, { matcher, rule });
   }
 
+  // Add module metadata injection loader for thirdPartyErrorFilterIntegration support.
+  // This is only added when turbopackApplicationKey is set AND the Next.js version supports the
+  // `condition` field in Turbopack rules (Next.js 16+). Without `condition: { not: 'foreign' }`,
+  // the loader would tag node_modules as first-party, defeating the purpose.
+  const applicationKey = userSentryOptions?._experimental?.turbopackApplicationKey;
+  if (
+    applicationKey &&
+    nextJsVersion &&
+    supportsTurbopackRuleCondition(nextJsVersion)
+  ) {
+    newConfig.rules = safelyAddTurbopackRule(newConfig.rules, {
+      matcher: '*.{ts,tsx,js,jsx,mjs,cjs}',
+      rule: {
+        condition: { not: 'foreign' },
+        loaders: [
+          {
+            loader: path.resolve(__dirname, '..', 'loaders', 'moduleMetadataInjectionLoader.js'),
+            options: {
+              applicationKey,
+            },
+          },
+        ],
+      },
+    });
+  }
+
   return newConfig;
 }
 

packages/nextjs/src/config/types.ts

@@ -713,6 +713,17 @@ export type SentryBuildOptions = {
      * Requires cron jobs to be configured in `vercel.json`.
      */
     vercelCronsMonitoring?: boolean;
+    /**
+     * Application key used by `thirdPartyErrorFilterIntegration` to distinguish
+     * first-party code from third-party code in Turbopack builds.
+     *
+     * When set, a Turbopack loader injects `_sentryModuleMetadata` into every
+     * first-party module, mirroring what `@sentry/webpack-plugin` does for
+     * webpack builds via its `moduleMetadata` / `applicationKey` option.
+     *
+     * Requires Next.js 16+
+     */
+    turbopackApplicationKey?: string;
   }>;
 
   /**