From 9ad4ed15ee8211d36d8975a71cdd2c2121262072 Mon Sep 17 00:00:00 2001
From: mika <211269698+mikamikasuki@users.noreply.github.com>
Date: Fri, 2 Oct 2026 16:17:42 -0700
Subject: [PATCH] fix(elysia): use Node transport on Node runtimes

Co-Authored-By: GPT-6.1 Sol <codex@openai.com>
---
 packages/elysia/src/sdk.ts       |  3 ++-
 packages/elysia/test/sdk.test.ts | 14 ++++++++++++--
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/packages/elysia/src/sdk.ts b/packages/elysia/src/sdk.ts
index f8d8dd9d8a35..be7225026a63 100644
--- a/packages/elysia/src/sdk.ts
+++ b/packages/elysia/src/sdk.ts
@@ -3,6 +3,7 @@ import {
   bunServerIntegration,
   getDefaultIntegrations as getBunDefaultIntegrations,
   makeFetchTransport,
+  makeNodeTransport,
 } from '@sentry/bun';
 import type { Integration, Options } from '@sentry/core';
 import { applySdkMetadata } from '@sentry/core';
@@ -50,7 +51,7 @@ export function init(userOptions: ElysiaOptions = {}): NodeClient | undefined {
 
   applySdkMetadata(userOptions, 'elysia', ['elysia', options.runtime.name]);
 
-  options.transport = options.transport || makeFetchTransport;
+  options.transport = options.transport || (options.runtime.name === 'bun' ? makeFetchTransport : makeNodeTransport);
 
   if (options.defaultIntegrations === undefined) {
     options.defaultIntegrations = getDefaultIntegrations(options);
diff --git a/packages/elysia/test/sdk.test.ts b/packages/elysia/test/sdk.test.ts
index 142c3f4ff456..2670802b21f3 100644
--- a/packages/elysia/test/sdk.test.ts
+++ b/packages/elysia/test/sdk.test.ts
@@ -5,6 +5,7 @@ const mockApplySdkMetadata = vi.fn();
 const mockInitNode = vi.fn();
 const mockGetBunDefaultIntegrations = vi.fn(() => [] as Integration[]);
 const mockMakeFetchTransport = vi.fn();
+const mockMakeNodeTransport = vi.fn();
 
 vi.mock('@sentry/core', async importActual => {
   // eslint-disable-next-line @typescript-eslint/consistent-type-imports
@@ -19,6 +20,7 @@ vi.mock('@sentry/bun', () => ({
   init: mockInitNode,
   getDefaultIntegrations: mockGetBunDefaultIntegrations,
   makeFetchTransport: mockMakeFetchTransport,
+  makeNodeTransport: mockMakeNodeTransport,
   bunServerIntegration: () => ({ name: 'BunServer', setupOnce: vi.fn() }),
 }));
 
@@ -53,16 +55,24 @@ describe('init', () => {
     );
   });
 
-  it('uses makeFetchTransport by default', () => {
+  it('uses makeNodeTransport by default on Node', () => {
     init({ dsn: 'https://examplePublicKey@o0.ingest.sentry.io/0' });
 
     expect(mockInitNode).toHaveBeenCalledWith(
       expect.objectContaining({
-        transport: mockMakeFetchTransport,
+        transport: mockMakeNodeTransport,
       }),
     );
   });
 
+  it('uses makeFetchTransport by default on Bun', () => {
+    vi.stubGlobal('Bun', { version: '1.2.3' });
+
+    init({ dsn: 'https://examplePublicKey@o0.ingest.sentry.io/0' });
+
+    expect(mockInitNode).toHaveBeenCalledWith(expect.objectContaining({ transport: mockMakeFetchTransport }));
+  });
+
   it('allows overriding transport', () => {
     const customTransport = vi.fn();
     init({ dsn: 'https://examplePublicKey@o0.ingest.sentry.io/0', transport: customTransport });