fix(astro): handle builtin modules without node prefix

packages/astro/src/integration/index.ts

@@ -4,6 +4,7 @@ import * as path from 'path';
 import { sentryVitePlugin } from '@sentry/vite-plugin';
 import type { AstroConfig, AstroIntegration } from 'astro';
 
+import { namespaceBuiltinPlugin } from './namespace';
 import { buildClientSnippet, buildSdkInitFileImportSnippet, buildServerSnippet } from './snippets';
 import type { SentryOptions } from './types';
 
@@ -51,6 +52,17 @@ export const sentryAstro = (options: SentryOptions = {}): AstroIntegration => {
           });
         }
 
+        // Update Node.js builtin imports for Cloudflare.
+        // Node.js APIs are available under `node:` prefix.
+        // Ref: https://developers.cloudflare.com/workers/runtime-apis/nodejs/
+        if (config?.adapter?.name.startsWith('@astrojs/cloudflare')) {
+          updateConfig({
+            vite: {
+              plugins: [namespaceBuiltinPlugin()],
+            },
+          });
+        }
+
         const pathToClientInit = options.clientInitPath
           ? path.resolve(options.clientInitPath)
           : findDefaultSdkInitFile('client');

packages/astro/src/integration/namespace.ts

@@ -0,0 +1,26 @@
+import module from 'module';
+import type { Plugin } from 'vite';
+
+/**
+ * Cloudflare like environments doesn't support requiring builtin modules
+ * to be loaded without `node:` prefix. This vite plugin ensures that,
+ * all built-in modules are loaded with `node:` prefix.
+ *
+ * TODO: Remove this when we support Node 18 and above.
+ */
+export function namespaceBuiltinPlugin(): Plugin {
+  return {
+    name: 'sentry-builtin-namespace',
+    enforce: 'pre',
+    resolveId(id) {
+      if (module.builtinModules.includes(id)) {
+        return {
+          id: `node:${id}`,
+          external: true,
+        };
+      }
+
+      return undefined;
+    },
+  };
+}