如何在 Node.js 中将文件从服务器发送到客户端

Question

我正在 Node.js 中编写一个登录系统。我正在自动生成密码

app.post("/new/user", (req, res,)=>
{
   var passwd = generateRandomPasswd();
   fs.writeFileSync("credentials.txt", "Username : "+req.body.userName+"\nPassword : "+passwd);
})

如何将此凭据文件发送到客户端计算机？

Answer 1

app.post("/new/user", (req, res,)=>
{
   var passwd = generateRandomPasswd();
   fs.writeFileSync("credentials.txt", "Username : "+req.body.userName+"\nPassword : "+passwd);

   var readStream = fileSystem.createReadStream('credentials.txt');
   readStream.pipe(res);
})