docs/zh-CN/skills/nestjs-patterns/SKILL.md
NestJS 架构模式,涵盖模块、控制器、提供者、DTO 验证、守卫、拦截器、配置以及生产级 TypeScript 后端。
npx skillsauth add affaan-m/everything-claude-code nestjs-patternsInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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适用于模块化 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/ or 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();
});
});
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