Fix route

app/api/chat/route.ts

@@ -40,29 +40,31 @@ export async function POST(req: Request) {
   const stream = OpenAIStream(res, {
     async onCompletion(completion) {
       const title = json.messages[0].content.substring(0, 100)
-      const userId = session.user?.id
-      const id = json.id ?? nanoid()
-      const createdAt = Date.now()
-      const path = `/chat/${id}`
-      const payload = {
-        id,
-        title,
-        userId,
-        createdAt,
-        path,
-        messages: [
-          ...messages,
-          {
-            content: completion,
-            role: 'assistant'
-          }
-        ]
+      const userId = session?.user.id
+      if (userId) {
+        const id = json.id ?? nanoid()
+        const createdAt = Date.now()
+        const path = `/chat/${id}`
+        const payload = {
+          id,
+          title,
+          userId,
+          createdAt,
+          path,
+          messages: [
+            ...messages,
+            {
+              content: completion,
+              role: 'assistant'
+            }
+          ]
+        }
+        await kv.hmset(`chat:${id}`, payload)
+        await kv.zadd(`user:chat:${userId}`, {
+          score: createdAt,
+          member: `chat:${id}`
+        })
       }
-      await kv.hmset(`chat:${id}`, payload)
-      await kv.zadd(`user:chat:${userId}`, {
-        score: createdAt,
-        member: `chat:${id}`
-      })
     }
   })
 

package.json

@@ -26,6 +26,7 @@
     "@vercel/analytics": "^1.0.0",
     "@vercel/kv": "^0.2.1",
     "@vercel/og": "^0.5.7",
+    "ai": "^2.1.2",
     "ai-connector": "^0.0.12",
     "body-scroll-lock": "4.0.0-beta.0",
     "class-variance-authority": "^0.4.0",