+
+ Server Function only called by Server Environment is kept in the
+ server build
+
+
)
diff --git a/e2e/react-start/server-functions/src/routes/server-only-fn.tsx b/e2e/react-start/server-functions/src/routes/server-only-fn.tsx
new file mode 100644
index 00000000000..0d06b17f9dd
--- /dev/null
+++ b/e2e/react-start/server-functions/src/routes/server-only-fn.tsx
@@ -0,0 +1,105 @@
+import { createFileRoute } from '@tanstack/react-router'
+import * as React from 'react'
+import { createServerFn } from '@tanstack/react-start'
+import { fnOnlyCalledByServer } from '~/functions/fnOnlyCalledByServer'
+
+/**
+ * This tests that server functions called only from the server (not from the client)
+ * are still included in the build and work correctly at runtime.
+ *
+ * The `fnOnlyCalledByServer` is only called from `proxyFnThatCallsServerOnlyFn` on the server,
+ * and is never referenced directly from client code.
+ */
+
+// This function IS called from the client, and it calls serverOnlyFn on the server
+const proxyFnThatCallsServerOnlyFn = createServerFn().handler(async () => {
+ // Call the server-only function from within another server function
+ const result = await fnOnlyCalledByServer()
+ return {
+ fromServerOnlyFn: result,
+ wrapper: 'client-callable wrapper',
+ }
+})
+
+const getFnOnlyCalledByServer = createServerFn().handler(async () => {
+ return fnOnlyCalledByServer
+})
+
+export const Route = createFileRoute('/server-only-fn')({
+ component: ServerOnlyFnTest,
+})
+
+function ServerOnlyFnTest() {
+ const [result, setResult] = React.useState<{
+ fromServerOnlyFn: { message: string; secret: number }
+ wrapper: string
+ } | null>(null)
+
+ const [callFromServerResult, setCallFromServerResult] = React.useState<
+ string | null
+ >(null)
+
+ return (
+
+
Server-Only Function Test
+
+ This tests that server functions which are only called from other server
+ functions (and never directly from the client) still work correctly.
+