上传的FTP图像为0个字节

Question

我正在使用我的android设备将图像传输到桌面。我正在使用xampp的filezilla。它说传输是传输正常，但是当我检查图像时，文件为空。我使用图片的URI，因为当我尝试base64时，它说它太大了。

var ftp = require('basic-ftp');
var fs = require('fs');

const client = new ftp.Client();
const dir = 'uploads/images/';
const rdStream = dir + 'x.jpg';
async function ftpServer(file,fileName){
    try{
        await client.access({
            host: 'localhost',
            port: '21',
            user: 'handyman',
            password: 'handyman',
            secure: false,
        })
        await client.ensureDir(dir);
        await client.uploadDir(dir);
        await client.upload(fs.createReadStream(rdStream), fileName);     
        //await client.rename(await client.pwd()+'/'+file,await client.pwd()+'/'+fileName);
        //await client.size(await client.pwd()+'/'+fileName);       
    }catch(error){
        console.log(error);
    }
    client.close();
}

router.post('/upload/:userID', function(req,res){ 
    var file = req.body.value;
    var userID = req.params.userID;
    var imgFile = file.split('/');
    var img = imgFile[imgFile.length-1];
    var fileName = userID +'.'+ img[1];
    ftpServer(file,img).then(() => console.log('Hello'));
});