在下面的REST API中,接收到的文件对象的类型是什么。
@Post('/:folderId/documents/:fileName')
@UseInterceptors(FileInterceptor('file'))
@ApiConsumes('multipart/form-data')
@ApiImplicitParam({ name: 'folderId', description: ' Folder Id' })
@ApiImplicitParam({ name: 'fileName', description: ' File Name' })
@ApiImplicitFile({ name: 'file', required: true, description: 'PDF File' })
async uploadFile(@UploadedFile() file, @Param() folderId, @Param() fileName) {
/**
* I need to know the type of file object (first argument) of uploadFile
*/
this.folderService.uploadFile(file, folderId, fileName);
}
我需要将请求中收到的文件写入磁盘。该怎么做?
答案 0 :(得分:2)
您可以通过在MulterOptions
中指定目标路径来保存文件:
// files will be saved in the /uploads folder
@UseInterceptors(FileInterceptor('file', {dest: 'uploads'}))
如果您想进一步控制文件的保存方式,则可以创建一个multer diskStorage
配置对象:
import { diskStorage } from 'multer';
export const myStorage = diskStorage({
// Specify where to save the file
destination: (req, file, cb) => {
cb(null, 'uploads');
},
// Specify the file name
filename: (req, file, cb) => {
cb(null, Date.now() + '-' + file.originalname);
},
});
然后将其传递到控制器中的storage
属性。
@UseInterceptors(FileInterceptor('file', {storage: myStorage}))
有关更多配置选项,请参见multer docs。
答案 1 :(得分:0)
您可以从包中导入类型。 '@types/multer'
,然后将文件限定为:
@UploadedFile() file: Express.Multer.File,
https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/multer/index.d.ts#L103
答案 2 :(得分:0)
试试这个...
@Post(':userid/avatar')
@UseInterceptors(FileInterceptor('file',
{
storage: diskStorage({
destination: './avatars',
filename: (req, file, cb) => {
const randomName = Array(32).fill(null).map(() => (Math.round(Math.random() * 16)).toString(16)).join('')
return cb(null, `${randomName}${extname(file.originalname)}`)
}
})
}
)
)
uploadAvatar(@Param('userid') userId, @UploadedFile() file) {
this.userService.setAvatar(Number(userId), `${this.SERVER_URL}${file.path}`);
}
查看更多信息 - https://www.techiediaries.com/nestjs-upload-serve-static-file/