api/index.ts

@@ -1,31 +1,19 @@
 import { NestFactory } from '@nestjs/core';
-import { ExpressAdapter } from '@nestjs/platform-express';
+import { AppModule } from '../src/app.module';
-import { AppModule } from '../dist/app.module';
 import { HttpExceptionFilter } from '../src/common/filters/http-exception.filter';
 import { TransformInterceptor } from '../src/common/interceptors/transform.interceptor';
 import { ValidationPipe } from '@nestjs/common';
 import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
-import * as express from 'express';
 import * as bodyParser from 'body-parser';
 
-// 缓存 app 实例，避免每次冷启动都重新创建
+let cachedApp;
-let cachedApp: any;
 
 async function bootstrap() {
   if (!cachedApp) {
-    const expressApp = express();
+    const app = await NestFactory.create(AppModule);
-    const app = await NestFactory.create(
-      AppModule,
-      new ExpressAdapter(expressApp),
-    );
 
-    // 配置 CORS
     app.enableCors({
-      origin: [
+      origin: true,
-        'https://tradingadvfrontend.vercel.app',
-        'http://localhost:8000',
-        'http://localhost:3030',
-      ],
       credentials: true,
       methods: ['GET', 'POST', 'PUT', 'DELETE', 'PATCH', 'OPTIONS'],
       allowedHeaders: [
@@ -38,11 +26,8 @@ async function bootstrap() {
       ],
     });
 
-    // 全局过滤器和拦截器
     app.useGlobalFilters(new HttpExceptionFilter());
     app.useGlobalInterceptors(new TransformInterceptor());
-
-    // 全局验证管道
     app.useGlobalPipes(
       new ValidationPipe({
         whitelist: true,
@@ -51,13 +36,12 @@ async function bootstrap() {
       }),
     );
 
-    // Body parser 配置
     app.use(bodyParser.json({ limit: '50mb' }));
     app.use(bodyParser.urlencoded({ limit: '50mb', extended: true }));
 
-    // Swagger 文档
+    // Swagger 配置
     const config = new DocumentBuilder()
-      .setTitle('API 文档')
+      .setTitle('我的应用 API')
       .setDescription('这是我的应用程序的 API 文档')
       .setVersion('1.0')
       .addBearerAuth()
@@ -66,13 +50,14 @@ async function bootstrap() {
     SwaggerModule.setup('api', app, document);
 
     await app.init();
-    cachedApp = expressApp;
+    cachedApp = app;
   }
+
   return cachedApp;
 }
 
-// Vercel Serverless handler
+export default async (req, res) => {
-export default async function handler(req: any, res: any) {
   const app = await bootstrap();
-  app(req, res);
+  const server = app.getHttpAdapter().getInstance();
-}
+  return server(req, res);
+};