nest js 上傳文件

方式一：

直接在FileInterceptor修改
引入依賴

import { Controller, Post, UseInterceptors ,UploadedFile} from '@nestjs/common';
import { FileInterceptor } from '@nestjs/platform-express';
import multer = require('multer');

file.controller.ts

 @Post('upload')
  @UseInterceptors(FileInterceptor('file', {
    storage: multer.diskStorage({
      destination: (req, file, cb) => {
        cb(null, '/Users/xxxxx/Desktop/aaa');
      },
      filename: (req, file, cb) => {
        cb(null, file.originalname);
      },
    }),
  }))
  async uploade(@UploadedFile() file) {
  
    return file;
  }

方式二

在Module添加，這種方式更友好,圖片會存儲在fileUpload目錄下
file.module.ts

import { Module } from '@nestjs/common';
import { FileController } from './file.controller';
import { FileService } from './file.service';
import { MulterModule } from '@nestjs/platform-express';
import dayjs = require('dayjs');
import { diskStorage } from 'multer';
import * as nuid from 'nuid';
@Module({
  imports:[
    MulterModule.register({
      storage: diskStorage({
        //自定義路徑
        destination: `./fileUpload/${dayjs().format('YYYY-MM-DD')}`,
        filename: (req, file, cb) => {
          // 自定義文件名
          // const filename = `${nuid.next()}.${file.mimetype.split('/')[1]}`;
          // return cb(null, filename);
          return  cb(null, file.originalname);
        },
      }),
    }),

  ],
  controllers: [FileController],
  providers: [FileService]
})
export class FileModule {}

file.controller.ts

  @Post('upload')
  @UseInterceptors(FileInterceptor('file'))
  async UploadedFile(@UploadedFile() file) {
    return file;
  }