前言

今天要接著完成：

• 透過email發送含有token的url給使用者

Nodemailer寄送email

一樣在昨天的forgotPassword controller中
建立一組重置密碼的url＆要寄給使用者的訊息

const resetUrl = `${req.protocol}://${req.get('host')}/api/v1/auth/resetPassword/${resetToken}`;

const message = `You are receiving this email because you has requested the reset of a password. Please make a PUT request to: ${resetUrl}`;

resetToken指的是昨天隨機生成的那串代碼（未加密過）

接著在utils資料夾建立sendEmail.js
copy&paste Nodemailer的sample code XD

const sendEmail = async (options) => {
  const transporter = nodemailer.createTransport({
    host: SMTP_HOST,
    port: SMTP_PORT,
    auth: {
      user: SMTP_EMAIL,
      pass: SMTP_PASSWORD
    }
  });

  const message = {
    from: `${FROM_NAME} <${FROM_EMAIL}>`,
    to: options.email,
    subject: options.subject,
    text: options.message
  };

  const info = await transporter.sendMail(message);
}

transporter中host, port, auth的值須從Mailtrap SMTP Settings複製過來
message的from, to, text指的是寄件人＆收件人的資訊, 以及信件的內容

Mailtrap檢視收到的email

回到forgotPassword controller

try {
  await sendEmail({
    email: user.email,
    subject: 'Password reset token',
    message
});

  res.status(200).json({
    success: true,
    data: 'Email sent'
  });
} catch(err) {
  user.resetPasswordToken = undefined;
  user.resetPasswordExpire = undefined;

  await user.save({ validateBeforeSave: false });

  return next(new ErrorResponse('Email could not be sent', 500));
}

email寄送成功的畫面：