docs: simplify tanstack start handlers to use ANY method (#1189)

Replace multiple HTTP method handlers (HEAD, GET, POST, PUT, PATCH,
DELETE) with a single ANY handler to simplify the example code.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Documentation**
* Updated TanStack Start adapter docs and examples to show simplified
route configuration using a single unified handler instead of separate
HTTP method handlers.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: unnoq <contact@unnoq.com>

Author: Visualizeit

apps/content/docs/adapters/tanstack-start.md

@@ -26,24 +26,17 @@ const handler = new RPCHandler(router, {
   ],
 })
 
-async function handle({ request }: { request: Request }) {
-  const { response } = await handler.handle(request, {
-    prefix: '/api/rpc',
-    context: {}, // Provide initial context if needed
-  })
-
-  return response ?? new Response('Not Found', { status: 404 })
-}
-
 export const Route = createFileRoute('/api/rpc/$')({
   server: {
     handlers: {
-      HEAD: handle,
-      GET: handle,
-      POST: handle,
-      PUT: handle,
-      PATCH: handle,
-      DELETE: handle,
+      ANY: async ({ request }) => {
+        const { response } = await handler.handle(request, {
+          prefix: '/api/rpc',
+          context: {}, // Provide initial context if needed
+        })
+
+        return response ?? new Response('Not Found', { status: 404 })
+      },
     },
   },
 })

playgrounds/tanstack-start/src/routes/api/$.ts

@@ -65,24 +65,17 @@ const handler = new OpenAPIHandler(router, {
   ],
 })
 
-async function handle({ request }: { request: Request }) {
-  const { response } = await handler.handle(request, {
-    prefix: '/api',
-    context: {},
-  })
-
-  return response ?? new Response('Not Found', { status: 404 })
-}
-
 export const Route = createFileRoute('/api/$')({
   server: {
     handlers: {
-      HEAD: handle,
-      GET: handle,
-      POST: handle,
-      PUT: handle,
-      PATCH: handle,
-      DELETE: handle,
+      ANY: async ({ request }) => {
+        const { response } = await handler.handle(request, {
+          prefix: '/api',
+          context: {},
+        })
+
+        return response ?? new Response('Not Found', { status: 404 })
+      },
     },
   },
 })

playgrounds/tanstack-start/src/routes/api/rpc.$.ts

@@ -17,24 +17,17 @@ const handler = new RPCHandler(router, {
   ],
 })
 
-async function handle({ request }: { request: Request }) {
-  const { response } = await handler.handle(request, {
-    prefix: '/api/rpc',
-    context: {},
-  })
-
-  return response ?? new Response('Not Found', { status: 404 })
-}
-
 export const Route = createFileRoute('/api/rpc/$')({
   server: {
     handlers: {
-      HEAD: handle,
-      GET: handle,
-      POST: handle,
-      PUT: handle,
-      PATCH: handle,
-      DELETE: handle,
+      ANY: async ({ request }) => {
+        const { response } = await handler.handle(request, {
+          prefix: '/api/rpc',
+          context: {},
+        })
+
+        return response ?? new Response('Not Found', { status: 404 })
+      },
     },
   },
 })