🐛 fix: force convert string to array, may fix #54

Author: hezhijie0327

src/app/api/search/route.ts

@@ -5,6 +5,7 @@ import {
   getPluginSettingsFromRequest,
 } from '@lobehub/chat-plugin-sdk';
 import { SearchParameters, Settings } from '@/type';
+import { normalizeCategories } from '@/utils/normalizeCategories';
 
 export async function POST(req: NextRequest) {
   try {
@@ -29,7 +30,7 @@ export async function POST(req: NextRequest) {
     const { categories, q, time_range } = (await req.json()) as SearchParameters;
 
     const searchParameters: SearchParameters = {
-      ...(categories ? { categories: categories.join(',') } : {}),
+      ...(categories ? { categories: normalizeCategories(categories) } : {}),
       format: 'json',
       q,
       ...(time_range ? { time_range } : {}),

src/utils/normalizeCategories.ts

@@ -0,0 +1,12 @@
+export const normalizeCategories = (categories?: string | string[]): string | undefined => {
+  if (!categories) return undefined;
+  if (typeof categories === 'string') {
+    try {
+      const parsed = JSON.parse(categories);
+      if (Array.isArray(parsed)) return parsed.join(',');
+    } catch {
+      return categories;
+    }
+  }
+  return Array.isArray(categories) ? categories.join(',') : undefined;
+};