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Provides NestJS architecture patterns for modules, controllers, providers, DTO validation, guards, interceptors, and production-grade TypeScript backends.
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用于模块化 TypeScript 后端的生产级 NestJS 模式。
Provides NestJS patterns for modules, controllers, providers, DTO validation, guards, interceptors, config, and production TypeScript backends. Useful for structuring APIs, adding validation, and database integrations.
Creates and configures NestJS modules, controllers, services, DTOs, guards, and interceptors for TypeScript backend apps. Use for REST/GraphQL APIs, dependency injection, JWT/Passport auth, TypeORM/Prisma integration, validation, Swagger docs, and unit/E2E testing.
Scaffolds and configures NestJS modules, controllers, services, DTOs, guards, interceptors, pipes, and validation for enterprise-grade TypeScript backends with REST APIs or GraphQL. Integrates JWT/Passport auth, TypeORM/Prisma, and Swagger docs.
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用于模块化 TypeScript 后端的生产级 NestJS 模式。
src/
├── app.module.ts
├── main.ts
├── common/
│ ├── filters/
│ ├── guards/
│ ├── interceptors/
│ └── pipes/
├── config/
│ ├── configuration.ts
│ └── validation.ts
├── modules/
│ ├── auth/
│ │ ├── auth.controller.ts
│ │ ├── auth.module.ts
│ │ ├── auth.service.ts
│ │ ├── dto/
│ │ ├── guards/
│ │ └── strategies/
│ └── users/
│ ├── dto/
│ ├── entities/
│ ├── users.controller.ts
│ ├── users.module.ts
│ └── users.service.ts
└── prisma/ 或 database/
common/ 中。async function bootstrap() {
const app = await NestFactory.create(AppModule, { bufferLogs: true });
app.useGlobalPipes(
new ValidationPipe({
whitelist: true,
forbidNonWhitelisted: true,
transform: true,
transformOptions: { enableImplicitConversion: true },
}),
);
app.useGlobalInterceptors(new ClassSerializerInterceptor(app.get(Reflector)));
app.useGlobalFilters(new HttpExceptionFilter());
await app.listen(process.env.PORT ?? 3000);
}
bootstrap();
whitelist 和 forbidNonWhitelisted。@Module({
controllers: [UsersController],
providers: [UsersService],
exports: [UsersService],
})
export class UsersModule {}
@Controller('users')
export class UsersController {
constructor(private readonly usersService: UsersService) {}
@Get(':id')
getById(@Param('id', ParseUUIDPipe) id: string) {
return this.usersService.getById(id);
}
@Post()
create(@Body() dto: CreateUserDto) {
return this.usersService.create(dto);
}
}
@Injectable()
export class UsersService {
constructor(private readonly usersRepo: UsersRepository) {}
async create(dto: CreateUserDto) {
return this.usersRepo.create(dto);
}
}
export class CreateUserDto {
@IsEmail()
email!: string;
@IsString()
@Length(2, 80)
name!: string;
@IsOptional()
@IsEnum(UserRole)
role?: UserRole;
}
class-validator 验证每个请求 DTO。@UseGuards(JwtAuthGuard, RolesGuard)
@Roles('admin')
@Get('admin/report')
getAdminReport(@Req() req: AuthenticatedRequest) {
return this.reportService.getForUser(req.user.id);
}
@Catch()
export class HttpExceptionFilter implements ExceptionFilter {
catch(exception: unknown, host: ArgumentsHost) {
const response = host.switchToHttp().getResponse<Response>();
const request = host.switchToHttp().getRequest<Request>();
if (exception instanceof HttpException) {
return response.status(exception.getStatus()).json({
path: request.url,
error: exception.getResponse(),
});
}
return response.status(500).json({
path: request.url,
error: 'Internal server error',
});
}
}
ConfigModule.forRoot({
isGlobal: true,
load: [configuration],
validate: validateEnv,
});
describe('UsersController', () => {
let app: INestApplication;
beforeAll(async () => {
const moduleRef = await Test.createTestingModule({
imports: [UsersModule],
}).compile();
app = moduleRef.createNestApplication();
app.useGlobalPipes(new ValidationPipe({ whitelist: true, transform: true }));
await app.init();
});
});