⚡ perf: Update gemini deployment restrictions (lobehub#3167)

src/app/api/chat/google/route.test.ts

@@ -15,7 +15,12 @@ describe('Configuration tests', () => {
   });
 
   it('should contain specific regions in preferredRegion', () => {
-    expect(preferredRegion).not.contain(['hk1']);
+    expect(preferredRegion).not.contain(['hkg1']);
+    expect(preferredRegion).not.contain(['dub1']);
+    expect(preferredRegion).not.contain(['cdg1']);
+    expect(preferredRegion).not.contain(['fra1']);
+    expect(preferredRegion).not.contain(['lhr1']);
+    expect(preferredRegion).not.contain(['arn1']);
   });
 });
 

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

@@ -13,8 +13,23 @@ import { POST as UniverseRoute } from '../[provider]/route';
 // so if you want to use with proxy, you need comment the code below
 export const runtime = 'edge';
 
-// due to Gemini-1.5-pro is not available in Hong Kong and Ireland, we need to set the preferred region to exclude "Hong Kong" or "Ireland".
-// refs: https://github.com/lobehub/lobe-chat/pull/2149
-export const preferredRegion = ['cle1', 'iad1', 'pdx1', 'sfo1'];
+// due to Gemini-1.5-pro is not available in Hong Kong, we need to set the preferred region to exclude "Hong Kong (hkg1)".
+// the paid service of the Gemini API is required in the following regions until 8 July 2024. The free service is not available. Therefore, the regions is temporarily disabled.
+// regions include Dublin (dub1, Ireland), Paris (cdg1, France), Frankfurt (fra1, Germany), London (lhr1, UK), and Stockholm (arn1, Sweden).
+// refs: https://ai.google.dev/gemini-api/docs/available-regions
+export const preferredRegion = [
+  'icn1',
+  'sin1',
+  'hnd1',
+  'kix1',
+  'bom1',
+  'cpt1',
+  'pdx1',
+  'cle1',
+  'syd1',
+  'iad1',
+  'sfo1',
+  'gru1',
+];
 
 export const POST = async (req: Request) => UniverseRoute(req, { params: { provider: 'google' } });