Fixing Excel login error

apps/api/src/contacts/people.controller.ts

@@ -1,4 +1,5 @@
 import {
+  BadRequestException,
   Body,
   Controller,
   Delete,
@@ -14,6 +15,7 @@ import {
   UseInterceptors,
 } from '@nestjs/common';
 import { FileInterceptor } from '@nestjs/platform-express';
+import { memoryStorage } from 'multer';
 import type { Response } from 'express';
 import { JwtAuthGuard } from '../auth/jwt-auth.guard';
 import { CurrentUser } from '../auth/current-user.decorator';
@@ -25,6 +27,11 @@ import { PeopleService } from './people.service';
 import { ContactsExcelService } from './contacts-excel.service';
 import { brand } from '@mento/shared';
 
+const excelUpload = FileInterceptor('file', {
+  storage: memoryStorage(),
+  limits: { fileSize: 15_000_000 },
+});
+
 @Controller('people')
 @UseGuards(JwtAuthGuard, OrgModuleGuard)
 @RequireOrgModule('customers')
@@ -61,20 +68,24 @@ export class PeopleController {
   }
 
   @Post('import/preview')
-  @UseInterceptors(FileInterceptor('file'))
-  previewImport(
-    @UploadedFile() file: Express.Multer.File,
-  ) {
+  @UseInterceptors(excelUpload)
+  previewImport(@UploadedFile() file?: Express.Multer.File) {
+    if (!file?.buffer?.length) {
+      throw new BadRequestException('فایل ارسال نشده');
+    }
     return this.excelService.previewPeople(file);
   }
 
   @Post('import')
-  @UseInterceptors(FileInterceptor('file'))
+  @UseInterceptors(excelUpload)
   import(
     @CurrentUser() user: Actor,
-    @UploadedFile() file: Express.Multer.File,
+    @UploadedFile() file?: Express.Multer.File,
     @Body('mapping') mapping?: string,
   ) {
+    if (!file?.buffer?.length) {
+      throw new BadRequestException('فایل ارسال نشده');
+    }
     return this.excelService.importPeople(user, file, mapping);
   }