nodejs delete files under the specified folder

fs.unlink('uploads/'+src, (err) => {
    if(err) {
      res.json({
        code: 200,
        success: false,
        message: err
      })
    }else {
      res.json({
        code: 200,
        success: true,
        message:'success'
      })
    }
  })

It should be noted that the first parameter path problem in fs.unlink