如何摆脱“TypeError：req.pipe 不是函数”nestjs 和 fastify

Question

我尝试使用 NestJS/Fastify 和 typescript 上传文件

这是main.ts

async function bootstrap() {
  //file upload with fastify
  const fastifyAdapter = new FastifyAdapter();
  fastifyAdapter.register(fmp, {
    limits: {
      fieldNameSize: 100, // Max field name size in bytes
      fieldSize: 1000000, // Max field value size in bytes
      fields: 10, // Max number of non-file fields
      fileSize: 100, // For multipart forms, the max file size
      files: 1, // Max number of file fields
      headerPairs: 2000, // Max number of header key=>value pairs
    },
  });

  const app = await NestFactory.create<NestFastifyApplication>(
    AppModule,
    fastifyAdapter,
  );
 await app.listen(3000);
  Logger.log('application started on http://localhost:3000', 'Bootstrap');
}
bootstrap();

这是file.controller.ts

@Post()
  @UseInterceptors(FileInterceptor('image'))
  @ApiConsumes('multipart/form-data')
  @ApiBody({
    description: 'logo',
    type: UploadFileDto,
  })
  uploadedFile(@UploadedFile() file) {
    const response = {
      originalname: file.originalname,
      filename: file.filename,
    };
    return response;
  }

上传文件到这个action后，代码抛出这样的异常

TypeError: req.pipe 不是函数 在 multerMiddleware (D:\R.Khodabakhshi\Repository\raimun-web\node_modules\multer\lib\make-middleware.js:176:9) 在 Promise (D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\platform-express\multer\interceptors\file.interceptor.js:15:81) 在新的承诺 () 在 MixinInterceptor.intercept (D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\platform-express\multer\interceptors\file.interceptor.js:15:19) 在 D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\interceptors\interceptors-consumer.js:22:36 在 Object.handle (D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\interceptors\interceptors-consumer.js:20:56) 在 LoggingInterceptor.intercept (D:\R.Khodabakhshi\Repository\raimun-web\dist\shared\logging.interceptor.js:28:21) 在 D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\interceptors\interceptors-consumer.js:22:36 在 InterceptorsConsumer.intercept (D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\interceptors\interceptors-consumer.js:24:24) 在 D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\router\router-execution-context.js:45:60 [Nest] 10928 - 2020-02-06 10:10:49 [ExceptionFilter] undefined undefined +587529ms TypeError：req.pipe 不是函数 在 multerMiddleware (D:\R.Khodabakhshi\Repository\raimun-web\node_modules\multer\lib\make-middleware.js:176:9) 在 Promise (D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\platform-express\multer\interceptors\file.interceptor.js:15:81) 在新的承诺 () 在 MixinInterceptor.intercept (D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\platform-express\multer\interceptors\file.interceptor.js:15:19) 在 D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\interceptors\interceptors-consumer.js:22:36 在 Object.handle (D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\interceptors\interceptors-consumer.js:20:56) 在 LoggingInterceptor.intercept (D:\R.Khodabakhshi\Repository\raimun-web\dist\shared\logging.interceptor.js:28:21) 在 D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\interceptors\interceptors-consumer.js:22:36 在 InterceptorsConsumer.intercept (D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\interceptors\interceptors-consumer.js:24:24) 在 D:\R.Khodabakhshi\Repository\raimun-web\node_modules@nestjs\core\router\router-execution-context.js:45:60

我该如何解决这个问题？？？

Answer 1

问题已解决，正如Jay McDaniel 提到的，我们不能将FastifyAdapter 与FileInterceptor 一起使用。 我用这个小代码解决了这个问题。

import {
  Controller,
  Logger,
  Post,
  Req,
  Res,
} from '@nestjs/common';
import * as fs from 'fs';
import * as path from 'path';
import * as pump from 'pump';
const logger = new Logger('FileController');

@ApiTags('File')
@Controller('api/file')
export class FileController {
  @Post()
  upload(@Req() req: any, @Res() reply: any): void {
      const mp = req.multipart(
      (field: any, file: any, filename: any, encoding: any, mimeType: any) => {
        console.log('save file from request ---- ', field, filename, mimeType);
        file.on('limit', () => logger.error('SIZE_LIMITED'));

        const filePath = path.resolve('./'+filename);
        const writeStream = fs.createWriteStream(filePath);
        pump(file, writeStream);
        writeStream.on('finish', () => {
          reply.code(200).send();
        });
      },

      (error: any) => {
        if (error) {
          logger.error(error);
          reply.code(500).send();
        }
      },
    );
    mp.on('partsLimit', () => logger.error('MAXIMUM_NUMBER_OF_FORM_PARTS'));
    mp.on('filesLimit', () => logger.error('MAXIMUM_NUMBER_OF_FILES'));
    mp.on('fieldsLimit', () => logger.error('MAXIMUM_NUMBER_OF_FIELD'));
  }
}

我希望这对你也有帮助......

Answer 2

您不能将FastifyAdapter 与FileInterceptor 一起使用。 It says so in the beginning of the docs。如果你想使用 Fastify 和文件上传，你需要为它创建自己的拦截器。