fix(cancel): moved to a lib component

src/app/api/chat/cancel/route.ts

@@ -1,37 +1,5 @@
 import { NextRequest } from 'next/server';
-
+import { cancelRequest } from '@/lib/cancel-tokens';
-// In-memory map to store cancel tokens by messageId
-const cancelTokens: Record<string, AbortController> = {};
-
-// Export for use in chat/route.ts
-export function registerCancelToken(
-  messageId: string,
-  controller: AbortController,
-) {
-  cancelTokens[messageId] = controller;
-}
-
-export function cleanupCancelToken(messageId: string) {
-  var cancelled = false;
-  if (messageId in cancelTokens) {
-    delete cancelTokens[messageId];
-    cancelled = true;
-  }
-  return cancelled;
-}
-
-export function cancelRequest(messageId: string) {
-  const controller = cancelTokens[messageId];
-  if (controller) {
-    try {
-      controller.abort();
-    } catch (e) {
-      console.error(`Error aborting request for messageId ${messageId}:`, e);
-    }
-    return true;
-  }
-  return false;
-}
 
 export async function POST(req: NextRequest) {
   const { messageId } = await req.json();

src/app/api/chat/route.ts

@@ -21,7 +21,7 @@ import { EventEmitter } from 'stream';
 import {
   registerCancelToken,
   cleanupCancelToken,
-} from './cancel/route';
+} from '@/lib/cancel-tokens';
 
 export const runtime = 'nodejs';
 export const dynamic = 'force-dynamic';

src/lib/cancel-tokens.ts

@@ -0,0 +1,36 @@
+export {};
+
+// In-memory map to store cancel tokens by messageId
+const cancelTokens: Record<string, AbortController> = {};
+
+// Register a cancel token for a message ID
+export function registerCancelToken(
+  messageId: string,
+  controller: AbortController,
+) {
+  cancelTokens[messageId] = controller;
+}
+
+// Remove a cancel token from the map
+export function cleanupCancelToken(messageId: string) {
+  var cancelled = false;
+  if (messageId in cancelTokens) {
+    delete cancelTokens[messageId];
+    cancelled = true;
+  }
+  return cancelled;
+}
+
+// Cancel a request by its message ID
+export function cancelRequest(messageId: string) {
+  const controller = cancelTokens[messageId];
+  if (controller) {
+    try {
+      controller.abort();
+    } catch (e) {
+      console.error(`Error aborting request for messageId ${messageId}:`, e);
+    }
+    return true;
+  }
+  return false;
+}