如何生成带有表单数据的 .txt 文件并使用 Node JS 下载？

Question

The system has a form, on the side of the backend I recover that data, what I can't do is download that data in a .txt file.

I was using fs.writefile () , but when the system is uploaded in the cloud it does not access the destination folder.

   var new_ingreso = new Ingreso(req.body);
   //I want to download the data from req.body in a file.txt
   fs.writeFile(
      'nameFile.txt',
      new_ingreso.nameUser,
      error => {
        if (error)
          console.log(error, 'el archivo no fue creado');
        else
          console.log('El archivo fue creado');
        });
  }

The file is created without problems what I want is to know if there is any way that this file can be downloaded or if there is another way to download.

He's seeing a way but I'm not sure how to continue.

var file = fs.writeFile(....);

Answer 1

You need to create a route like this. You need to do something with the file path to find your file. No security, code not tested, but it gives you the idea of how to do it.

See https://expressjs.com/en/api.html#res.sendFile

get('file', (req, res) => {
   res.sendFile('nameFile.txt', options, function (err) {
    if (err) {
      next(err)
    } else {
      console.log('Sent:', 'nameFile.txt')
    }
  })
})