fix(nextjs): Only warn on missing onRequestError in version 15

packages/nextjs/src/config/util.ts

@@ -0,0 +1,29 @@
+import * as fs from 'fs';
+import { sync as resolveSync } from 'resolve';
+
+/**
+ * Returns the version of Next.js installed in the project, or undefined if it cannot be determined.
+ */
+export function getNextjsVersion(): string | undefined {
+  const nextjsPackageJsonPath = resolveNextjsPackageJson();
+  if (nextjsPackageJsonPath) {
+    try {
+      const nextjsPackageJson: { version: string } = JSON.parse(
+        fs.readFileSync(nextjsPackageJsonPath, { encoding: 'utf-8' }),
+      );
+      return nextjsPackageJson.version;
+    } catch {
+      // noop
+    }
+  }
+
+  return undefined;
+}
+
+function resolveNextjsPackageJson(): string | undefined {
+  try {
+    return resolveSync('next/package.json', { basedir: process.cwd() });
+  } catch {
+    return undefined;
+  }
+}

packages/nextjs/src/config/webpack.ts

@@ -3,7 +3,7 @@
 
 import * as fs from 'fs';
 import * as path from 'path';
-import { escapeStringForRegex, loadModule, logger } from '@sentry/core';
+import { escapeStringForRegex, loadModule, logger, parseSemver } from '@sentry/core';
 import * as chalk from 'chalk';
 import { sync as resolveSync } from 'resolve';
 
@@ -22,6 +22,7 @@ import type {
   WebpackEntryProperty,
 } from './types';
 import { getWebpackPluginOptions } from './webpackPluginOptions';
+import { getNextjsVersion } from './util';
 
 // Next.js runs webpack 3 times, once for the client, the server, and for edge. Because we don't want to print certain
 // warnings 3 times, we keep track of them here.
@@ -58,7 +59,12 @@ export function constructWebpackConfigFunction(
       warnAboutDeprecatedConfigFiles(projectDir, runtime);
     }
     if (runtime === 'server') {
-      warnAboutMissingonRequestErrorHandler(projectDir);
+      const nextJsVersion = getNextjsVersion();
+      const { major } = parseSemver(nextJsVersion || '');
+      // was added in v15 (https://github.com/vercel/next.js/pull/67539)
+      if (major && major >= 15) {
+        warnAboutMissingOnRequestErrorHandler(projectDir);
+      }
     }
 
     let rawNewConfig = { ...incomingConfig };
@@ -443,7 +449,7 @@ async function addSentryToClientEntryProperty(
  *
  * @param projectDir The root directory of the project, where config files would be located
  */
-function warnAboutMissingonRequestErrorHandler(projectDir: string): void {
+function warnAboutMissingOnRequestErrorHandler(projectDir: string): void {
   const instrumentationPaths = [
     ['src', 'instrumentation.ts'],
     ['src', 'instrumentation.js'],

packages/nextjs/src/config/withSentryConfig.ts

@@ -2,16 +2,16 @@
 import { isThenable, parseSemver } from '@sentry/core';
 
 import * as childProcess from 'child_process';
-import * as fs from 'fs';
 import { getSentryRelease } from '@sentry/node';
-import { sync as resolveSync } from 'resolve';
+
 import type {
   ExportedNextConfig as NextConfig,
   NextConfigFunction,
   NextConfigObject,
   SentryBuildOptions,
 } from './types';
 import { constructWebpackConfigFunction } from './webpack';
+import { getNextjsVersion } from './util';
 
 let showedExportModeTunnelWarning = false;
 
@@ -299,30 +299,6 @@ function setUpBuildTimeVariables(userNextConfig: NextConfigObject, userSentryOpt
   }
 }
 
-function getNextjsVersion(): string | undefined {
-  const nextjsPackageJsonPath = resolveNextjsPackageJson();
-  if (nextjsPackageJsonPath) {
-    try {
-      const nextjsPackageJson: { version: string } = JSON.parse(
-        fs.readFileSync(nextjsPackageJsonPath, { encoding: 'utf-8' }),
-      );
-      return nextjsPackageJson.version;
-    } catch {
-      // noop
-    }
-  }
-
-  return undefined;
-}
-
-function resolveNextjsPackageJson(): string | undefined {
-  try {
-    return resolveSync('next/package.json', { basedir: process.cwd() });
-  } catch {
-    return undefined;
-  }
-}
-
 function getGitRevision(): string | undefined {
   let gitRevision: string | undefined;
   try {