node multer返回新文件名

Question

如何讓multer返回上傳文件的新文件名（superfilename）？

所以完成後，它會返回新的文件名？

服務器雙面：

var storage = multer.diskStorage({ //multers disk storage settings 
    destination: function (req, file, cb) { 
     cb(null, '/opt/mean/public/uploads/') 
    }, 
    filename: function (req, file, cb) { 
     var datetimestamp = Date.now(); 
     var superfilename = file.fieldname + '-' + datetimestamp + '.' + file.originalname.split('.')[file.originalname.split('.').length -1]; 
     cb(null, superfilename) 
    } 
    }); 
    var upload = multer({ //multer settings 
    storage: storage 
    }).single('file'); 



    upload(req,res,function(err){ 

      if(err){ 
      res.json({error_code:1,err_desc:err}); 
      return; 
      } 
      res.json({error_code:0,err_desc:null}); 
     }); 

Answer 1

可以retrun目標文件名：req.file.filename

一種方式是通過上傳對象爲如下上傳路線的中間件。 Rest文件相關信息將位於您的請求對象中。您可以參考official documentation瞭解暴露的API

app.post('/uploadFile',upload,(req,res)=>{ 

     if(req.file !== undefined){ 

     // once uploaded save the user data along with uploaded photo path to the database. 
     res.json({ 
      'fileName':req.file.originalname, 
      'destination':req.file.filename, 
      'userName':req.body.userName, 
      'phoneNumer':req.body.phoneNumber 
     }); 
     }else{ 
     res.json({ 
      'message':'Unable to Upload file' 
     }); 
     } 
    });