feat(nuxt): Add entrypointWrappedFunctions to define async wrapped server functions

packages/nuxt/src/common/types.ts

@@ -117,6 +117,19 @@ export type SentryNuxtModuleOptions = {
    */
   dynamicImportForServerEntry?: boolean;
 
+  /**
+   * By default—unless you configure `dynamicImportForServerEntry: false`—the SDK will try to wrap your application entrypoint
+   * with a dynamic `import()` to ensure all dependencies can be properly instrumented. Any previous exports from the entrypoint are still exported.
+   * Most exports of the server entrypoint are serverless functions and those are wrapped by Sentry. Other exports stay as-is.
+   *
+   * By default, the SDK will wrap the default export as well as a `handler` or `server` export from the entrypoint.
+   * If your application has a different main export that is used to run the application, you can overwrite this by providing an array of export names to wrap.
+   * Any wrapped export is expected to be an async function.
+   *
+   * @default ['default', 'handler', 'server']
+   */
+  entrypointWrappedFunctions?: string[];
+
   /**
    * Options to be passed directly to the Sentry Rollup Plugin (`@sentry/rollup-plugin`) and Sentry Vite Plugin (`@sentry/vite-plugin`) that ship with the Sentry Nuxt SDK.
    * You can use this option to override any options the SDK passes to the Vite (for Nuxt) and Rollup (for Nitro) plugin.

packages/nuxt/src/module.ts

@@ -21,6 +21,7 @@ export default defineNuxtModule<ModuleOptions>({
     const moduleOptions = {
       ...moduleOptionsParam,
       dynamicImportForServerEntry: moduleOptionsParam.dynamicImportForServerEntry !== false, // default: true
+      entrypointWrappedFunctions: moduleOptionsParam.entrypointWrappedFunctions || ['default', 'handler', 'server'],
     };
 
     const moduleDirResolver = createResolver(import.meta.url);
@@ -101,7 +102,7 @@ export default defineNuxtModule<ModuleOptions>({
             });
           }
         } else {
-          addDynamicImportEntryFileWrapper(nitro, serverConfigFile);
+          addDynamicImportEntryFileWrapper(nitro, serverConfigFile, moduleOptions);
 
           if (moduleOptions.debug) {
             consoleSandbox(() => {

packages/nuxt/src/vite/addServerConfig.ts

@@ -1,15 +1,17 @@
 import * as fs from 'fs';
 import { createResolver } from '@nuxt/kit';
 import type { Nuxt } from '@nuxt/schema';
-import { consoleSandbox, flatten } from '@sentry/utils';
+import { consoleSandbox } from '@sentry/utils';
 import type { Nitro } from 'nitropack';
 import type { InputPluginOption } from 'rollup';
 import type { SentryNuxtModuleOptions } from '../common/types';
 import {
   QUERY_END_INDICATOR,
-  SENTRY_FUNCTIONS_REEXPORT,
+  SENTRY_REEXPORTED_FUNCTIONS,
   SENTRY_WRAPPED_ENTRY,
+  SENTRY_WRAPPED_FUNCTIONS,
   constructFunctionReExport,
+  constructWrappedFunctionExportQuery,
   removeSentryQueryFromPath,
 } from './utils';
 
@@ -81,7 +83,12 @@ export function addServerConfigToBuild(
  * With this, the Sentry server config can be loaded before all other modules of the application (which is needed for import-in-the-middle).
  * See: https://nodejs.org/api/module.html#enabling
  */
-export function addDynamicImportEntryFileWrapper(nitro: Nitro, serverConfigFile: string): void {
+export function addDynamicImportEntryFileWrapper(
+  nitro: Nitro,
+  serverConfigFile: string,
+  moduleOptions: Omit<SentryNuxtModuleOptions, 'entrypointWrappedFunctions'> &
+    Required<Pick<SentryNuxtModuleOptions, 'entrypointWrappedFunctions'>>,
+): void {
   if (!nitro.options.rollupConfig) {
     nitro.options.rollupConfig = { output: {} };
   }
@@ -94,7 +101,10 @@ export function addDynamicImportEntryFileWrapper(nitro: Nitro, serverConfigFile:
   }
 
   nitro.options.rollupConfig.plugins.push(
-    wrapEntryWithDynamicImport(createResolver(nitro.options.srcDir).resolve(`/${serverConfigFile}`)),
+    wrapEntryWithDynamicImport({
+      resolvedSentryConfigPath: createResolver(nitro.options.srcDir).resolve(`/${serverConfigFile}`),
+      entrypointWrappedFunctions: moduleOptions.entrypointWrappedFunctions,
+    }),
   );
 }
 
@@ -103,7 +113,11 @@ export function addDynamicImportEntryFileWrapper(nitro: Nitro, serverConfigFile:
  * by using a regular `import` and load the server after that.
  * This also works with serverless `handler` functions, as it re-exports the `handler`.
  */
-function wrapEntryWithDynamicImport(resolvedSentryConfigPath: string): InputPluginOption {
+function wrapEntryWithDynamicImport({
+  resolvedSentryConfigPath,
+  entrypointWrappedFunctions,
+  debug,
+}: { resolvedSentryConfigPath: string; entrypointWrappedFunctions: string[]; debug?: boolean }): InputPluginOption {
   return {
     name: 'sentry-wrap-entry-with-dynamic-import',
     async resolveId(source, importer, options) {
@@ -129,17 +143,15 @@ function wrapEntryWithDynamicImport(resolvedSentryConfigPath: string): InputPlug
 
         moduleInfo.moduleSideEffects = true;
 
-        // `exportedBindings` can look like this:  `{ '.': [ 'handler' ], './firebase-gen-1.mjs': [ 'server' ] }`
-        // The key `.` refers to exports within the current file, while other keys show from where exports were imported first.
-        const exportedFunctions = flatten(Object.values(moduleInfo.exportedBindings || {}));
-
         // The enclosing `if` already checks for the suffix in `source`, but a check in `resolution.id` is needed as well to prevent multiple attachment of the suffix
         return resolution.id.includes(`.mjs${SENTRY_WRAPPED_ENTRY}`)
           ? resolution.id
           : resolution.id
               // Concatenates the query params to mark the file (also attaches names of re-exports - this is needed for serverless functions to re-export the handler)
               .concat(SENTRY_WRAPPED_ENTRY)
-              .concat(exportedFunctions?.length ? SENTRY_FUNCTIONS_REEXPORT.concat(exportedFunctions.join(',')) : '')
+              .concat(
+                constructWrappedFunctionExportQuery(moduleInfo.exportedBindings, entrypointWrappedFunctions, debug),
+              )
               .concat(QUERY_END_INDICATOR);
       }
       return null;
@@ -149,9 +161,10 @@ function wrapEntryWithDynamicImport(resolvedSentryConfigPath: string): InputPlug
         const entryId = removeSentryQueryFromPath(id);
 
         // Mostly useful for serverless `handler` functions
-        const reExportedFunctions = id.includes(SENTRY_FUNCTIONS_REEXPORT)
-          ? constructFunctionReExport(id, entryId)
-          : '';
+        const reExportedFunctions =
+          id.includes(SENTRY_WRAPPED_FUNCTIONS) || id.includes(SENTRY_REEXPORTED_FUNCTIONS)
+            ? constructFunctionReExport(id, entryId)
+            : '';
 
         return (
           // Regular `import` of the Sentry config

packages/nuxt/src/vite/utils.ts

@@ -1,5 +1,6 @@
 import * as fs from 'fs';
 import * as path from 'path';
+import { consoleSandbox, flatten } from '@sentry/utils';
 
 /**
  *  Find the default SDK init file for the given type (client or server).
@@ -26,7 +27,8 @@ export function findDefaultSdkInitFile(type: 'server' | 'client'): string | unde
 }
 
 export const SENTRY_WRAPPED_ENTRY = '?sentry-query-wrapped-entry';
-export const SENTRY_FUNCTIONS_REEXPORT = '?sentry-query-functions-reexport=';
+export const SENTRY_WRAPPED_FUNCTIONS = '?sentry-query-wrapped-functions=';
+export const SENTRY_REEXPORTED_FUNCTIONS = '?sentry-query-reexported-functions=';
 export const QUERY_END_INDICATOR = 'SENTRY-QUERY-END';
 
 /**
@@ -42,42 +44,108 @@ export function removeSentryQueryFromPath(url: string): string {
 }
 
 /**
- * Extracts and sanitizes function re-export query parameters from a query string.
- * If it is a default export, it is not considered for re-exporting. This function is mostly relevant for re-exporting
- * serverless `handler` functions.
+ * Extracts and sanitizes function re-export and function wrap query parameters from a query string.
+ * If it is a default export, it is not considered for re-exporting.
  *
  * Only exported for testing.
  */
-export function extractFunctionReexportQueryParameters(query: string): string[] {
+export function extractFunctionReexportQueryParameters(query: string): { wrap: string[]; reexport: string[] } {
   // Regex matches the comma-separated params between the functions query
   // eslint-disable-next-line @sentry-internal/sdk/no-regexp-constructor
-  const regex = new RegExp(`\\${SENTRY_FUNCTIONS_REEXPORT}(.*?)\\${QUERY_END_INDICATOR}`);
-  const match = query.match(regex);
-
-  return match && match[1]
-    ? match[1]
-        .split(',')
-        .filter(param => param !== '')
-        // Sanitize, as code could be injected with another rollup plugin
-        .map((str: string) => str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'))
-    : [];
+  const wrapRegex = new RegExp(
+    `\\${SENTRY_WRAPPED_FUNCTIONS}(.*?)(\\${QUERY_END_INDICATOR}|\\${SENTRY_REEXPORTED_FUNCTIONS})`,
+  );
+  // eslint-disable-next-line @sentry-internal/sdk/no-regexp-constructor
+  const reexportRegex = new RegExp(`\\${SENTRY_REEXPORTED_FUNCTIONS}(.*?)(\\${QUERY_END_INDICATOR})`);
+
+  const wrapMatch = query.match(wrapRegex);
+  const reexportMatch = query.match(reexportRegex);
+
+  const wrap =
+    wrapMatch && wrapMatch[1]
+      ? wrapMatch[1]
+          .split(',')
+          .filter(param => param !== '')
+          .map((str: string) => str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'))
+      : [];
+
+  const reexport =
+    reexportMatch && reexportMatch[1]
+      ? reexportMatch[1]
+          .split(',')
+          .filter(param => param !== '' && param !== 'default')
+          .map((str: string) => str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'))
+      : [];
+
+  return { wrap, reexport };
+}
+
+/**
+ *  Constructs a comma-separated string with all functions that need to be re-exported later from the server entry.
+ *  It uses Rollup's `exportedBindings` to determine the functions to re-export. Functions which should be wrapped
+ *  (e.g. serverless handlers) are wrapped by Sentry.
+ */
+export function constructWrappedFunctionExportQuery(
+  exportedBindings: Record<string, string[]> | null,
+  entrypointWrappedFunctions: string[],
+  debug?: boolean,
+): string {
+  // `exportedBindings` can look like this:  `{ '.': [ 'handler' ] }` or `{ '.': [], './firebase-gen-1.mjs': [ 'server' ] }`
+  // The key `.` refers to exports within the current file, while other keys show from where exports were imported first.
+  const functionsToExport = flatten(Object.values(exportedBindings || {})).reduce(
+    (functions, currFunctionName) => {
+      if (entrypointWrappedFunctions.includes(currFunctionName)) {
+        functions.wrap.push(currFunctionName);
+      } else {
+        functions.reexport.push(currFunctionName);
+      }
+      return functions;
+    },
+    { wrap: [], reexport: [] } as { wrap: string[]; reexport: string[] },
+  );
+
+  if (debug && functionsToExport.wrap.length === 0) {
+    consoleSandbox(() =>
+      // eslint-disable-next-line no-console
+      console.warn(
+        "[Sentry] No functions found to wrap. In case your server needs to export async functions other than `handler` or  `server`, consider adding the name(s) to Sentry's build options `sentry.entrypointWrappedFunctions` in your `nuxt.config.ts`.",
+      ),
+    );
+  }
+
+  const wrapQuery = functionsToExport.wrap.length
+    ? `${SENTRY_WRAPPED_FUNCTIONS}${functionsToExport.wrap.join(',')}`
+    : '';
+  const reexportQuery = functionsToExport.reexport.length
+    ? `${SENTRY_REEXPORTED_FUNCTIONS}${functionsToExport.reexport.join(',')}`
+    : '';
+
+  return [wrapQuery, reexportQuery].filter(Boolean).join('');
 }
 
 /**
- * Constructs a code snippet with function reexports (can be used in Rollup plugins)
+ * Constructs a code snippet with function reexports (can be used in Rollup plugins as a return value for `load()`)
  */
 export function constructFunctionReExport(pathWithQuery: string, entryId: string): string {
-  const functionNames = extractFunctionReexportQueryParameters(pathWithQuery);
-
-  return functionNames.reduce(
-    (functionsCode, currFunctionName) =>
-      functionsCode.concat(
-        'async function reExport(...args) {\n' +
-          `  const res = await import(${JSON.stringify(entryId)});\n` +
-          `  return res.${currFunctionName}.call(this, ...args);\n` +
-          '}\n' +
-          `export { reExport as ${currFunctionName} };\n`,
+  const { wrap: wrapFunctions, reexport: reexportFunctions } = extractFunctionReexportQueryParameters(pathWithQuery);
+
+  return wrapFunctions
+    .reduce(
+      (functionsCode, currFunctionName) =>
+        functionsCode.concat(
+          `async function ${currFunctionName}_sentryWrapped(...args) {\n` +
+            `  const res = await import(${JSON.stringify(entryId)});\n` +
+            `  return res.${currFunctionName}.call(this, ...args);\n` +
+            '}\n' +
+            `export { ${currFunctionName}_sentryWrapped as ${currFunctionName} };\n`,
+        ),
+      '',
+    )
+    .concat(
+      reexportFunctions.reduce(
+        (functionsCode, currFunctionName) =>
+          functionsCode.concat(`export { ${currFunctionName} } from ${JSON.stringify(entryId)};`),
+        '',
       ),
-    '',
-  );
+    );
 }