您需要创建一个AWS S3 Bucket，获取您的凭据，然后创建一个上传服务，如下所示：
（始终记住桶对象和端点的权限）

import aws from 'aws-sdk'
import { ManagedUpload } from 'aws-sdk/clients/s3'
import { FileArray, UploadedFile } from 'express-fileupload'
import { flatten } from 'ramda'

type ResponseUpload = {
    uploaded: any[]
    error: boolean
}

export const UploadService = () => {
    aws.config.update({
        secretAccessKey: '<YOUR_SECRET_ACCESS_HERE>',
        accessKeyId: '<YOUR_ACCESS_KEY_ID_HERE>',
        region: '<REGION_OF_YOUR_BUCKET>'
    })
    const s3 = new aws.S3()
    const upload = async (requestFiles: FileArray): Promise<ResponseUpload> => {
        const files: UploadedFile | UploadedFile[] = flatten([requestFiles.files])

        const responseUpload: ResponseUpload = {
            uploaded: [],
            error: false
        }

        for (const file of files) {
            if (!responseUpload.error) {
                try {
                    const uploadedFile = await uploadS3(file)
                    responseUpload.uploaded = [...responseUpload.uploaded, { ...uploadedFile, ...file }]
                } catch (err) {
                    responseUpload.error = true
                }
            }
        }

        return responseUpload
    }

    return { upload }
}