const Client = require('ssh2-sftp-client');
const sftp = new Client();
const Multer = require("multer")
const multer = Multer({
    storage: Multer.MemoryStorage
});

app.put("/sftp", multer.single('file'), (req, res) => {
    sftpCredentials = req.query;
    sftp.connect({
        host: sftpCredentials.host,
        port: sftpCredentials.port,
        username: sftpCredentials.username,
        password: sftpCredentials.password
    }).then(res =>{
      sftp.put(req.file,'/upload');
    })
})