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new file mode 100644
index 0000000000..6631d2b0fd
--- /dev/null
+++ b/test/e2e/opentelemetry/instrumentation/middleware-parent.test.ts
@@ -0,0 +1,82 @@
+import { FileRef, nextTestSetup } from 'e2e-utils'
+import { retry } from 'next-test-utils'
+import path from 'path'
+
+import { type Collector, connectCollector } from './collector'
+
+const COLLECTOR_PORT = 9001
+const EXTERNAL_TRACE_ID = 'ee75cd9e534ff5e9ed78b4a0c706f0f2'
+const EXTERNAL_SPAN_ID = '0f6a325411bdc432'
+
+describe('Node.js middleware OpenTelemetry parent context', () => {
+ let collector: Collector
+
+ beforeEach(async () => {
+ collector = await connectCollector({ port: COLLECTOR_PORT })
+ })
+
+ afterEach(async () => {
+ await collector.shutdown()
+ })
+
+ const { next, skipped } = nextTestSetup({
+ files: __dirname,
+ skipDeployment: true,
+ dependencies: require('./package.json').dependencies,
+ env: {
+ TEST_OTEL_COLLECTOR_PORT: String(COLLECTOR_PORT),
+ NEXT_TELEMETRY_DISABLED: '1',
+ },
+ overrideFiles: {
+ 'middleware.ts': new FileRef(path.join(__dirname, 'middleware-node.ts')),
+ },
+ })
+
+ if (skipped) return
+
+ it.each([
+ {
+ context: 'without an incoming trace',
+ fetchInit: undefined,
+ expectedParentId: undefined,
+ expectedTraceId: undefined,
+ },
+ {
+ context: 'with an incoming trace',
+ fetchInit: {
+ headers: {
+ traceparent: `00-${EXTERNAL_TRACE_ID}-${EXTERNAL_SPAN_ID}-01`,
+ },
+ },
+ expectedParentId: EXTERNAL_SPAN_ID,
+ expectedTraceId: EXTERNAL_TRACE_ID,
+ },
+ ])('$context', async ({ fetchInit, expectedParentId, expectedTraceId }) => {
+ const response = await next.fetch('/behind-middleware', fetchInit)
+ expect(response.status).toBe(200)
+
+ await retry(() => {
+ const spans = collector.getSpans()
+ const requestSpan = spans.find(
+ (span) =>
+ span.attributes?.['next.span_type'] === 'BaseServer.handleRequest' &&
+ span.attributes?.['http.target'] === '/behind-middleware'
+ )
+ const middlewareSpan = spans.find(
+ (span) =>
+ span.attributes?.['next.span_type'] === 'Middleware.execute' &&
+ span.attributes?.['http.target'] === '/behind-middleware'
+ )
+
+ expect(requestSpan).toBeDefined()
+ expect(middlewareSpan).toBeDefined()
+ expect(requestSpan?.parentId).toBe(expectedParentId)
+ expect(middlewareSpan?.parentId).toBe(expectedParentId)
+ expect(middlewareSpan?.parentId).not.toBe(requestSpan?.id)
+ if (expectedTraceId) {
+ expect(requestSpan?.traceId).toBe(expectedTraceId)
+ expect(middlewareSpan?.traceId).toBe(expectedTraceId)
+ }
+ })
+ })
+})
diff --git a/test/e2e/opentelemetry/instrumentation/middleware-node.ts b/test/e2e/opentelemetry/instrumentation/middleware-node.ts
new file mode 100644
index 0000000000..7c90ccaa2e
--- /dev/null
+++ b/test/e2e/opentelemetry/instrumentation/middleware-node.ts
@@ -0,0 +1,14 @@
+import type { NextRequest, NextFetchEvent } from 'next/server'
+import { NextResponse } from 'next/server'
+
+export const config = {
+ matcher: ['/behind-middleware', '/behind-middleware/:path*'],
+ runtime: 'nodejs',
+}
+
+export async function middleware(
+ request: NextRequest,
+ event?: NextFetchEvent
+): Promise<Response> {
+ return NextResponse.next()
+}
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