这个库为Nest.js添加了装饰器，以支持@fastify/multipart。其 API 与官方的 Nest.js Express 文件装饰器非常相似。

安装

NPM

``bash
$ npm install nest-file-fastify @fastify/multipart
`

Yarn

`bash
$ yarn add nest-file-fastify @fastify/multipart
`
pnpm

`bash
$ pnpm install nest-file-fastify @fastify/multipart
`
并在您的 Nest.js 应用程序中注册 multipart 插件

`typescript
import fastyfyMultipart from '@fastify/multipart';

...

app.register(fastyfyMultipart);
`

文档

$3

FileInterceptor 参数:

- fieldname: string - 包含文件的字段的名称

- options: 可选的 UploadOptions 类型对象

`ts
import { FileInterceptor, UploadedFile, MemoryStorageFile } from 'nest-file-fastify';

@Post('upload')
@UseInterceptors(FileInterceptor('file'))
uploadFile(@UploadedFile() file: MemoryStorageFile) {
console.log(file);
}
`

$3

FilesInterceptor 参数:

- fieldname: string - 包含文件的字段的名称

- maxCount: number - 可选的数字 - 接受的文件的最大数量

- options: 可选的 UploadOptions 类型对象
`ts
import { FilesInterceptor, UploadedFiles, MemoryStorageFile } from 'nest-file-fastify';

@Post('upload')
@UseInterceptors(FilesInterceptor('files'))
uploadFile(@UploadedFiles() files: MemoryStorageFile[]) {
console.log(files);
}
`

$3

FileFieldsInterceptor 参数:

- uploadFields: 类型为 UploadField 的数组对象

- options: 可选的 UploadOptions 类型对象
`ts


import { FileFieldsInterceptor, UploadedFiles, MemoryStorageFile } from 'nest-file-fastify';

@Post('upload')
@UseInterceptors(FileFieldsInterceptor([
{ name: 'avatar', maxCount: 1 },
{ name: 'background', maxCount: 1 },
]))
uploadFile(@UploadedFiles() files: { avatar?: MemoryStorageFile[], background?: MemoryStorageFile[] }) {
console.log(files);
}
`

$3

AnyFilesInterceptor 参数:

- options: 可选的 UploadOptions 类型对象


`ts
import { AnyFilesInterceptor, UploadedFiles, MemoryStorageFile } from 'nest-file-fastify';

@Post('upload')
@UseInterceptors(AnyFilesInterceptor()
uploadFile(@UploadedFiles() files: MemoryStorageFile[]) {
console.log(files);
}
``