Firebase 的云功能 - 在Write 上发送电子邮件

当有任何内容写入时，我正在尝试向我的电子邮件发送一封测试电子邮件/emails但电子邮件永远不会发送，并且功能日志为空。

exports.sendTestEmail = functions.database.ref('/emails')
  .onWrite(event => {
    return sendTestEmail('[email protected] /cdn-cgi/l/email-protection');
  })
// [END onWrite]

// Sends a welcome email to the given user.
function sendTestEmail(email) {
  const mailOptions = {
    from: `${APP_NAME} <[email protected] /cdn-cgi/l/email-protection>`,
    to: email
  };
  // The user subscribed to the newsletter.
  mailOptions.subject = `Welcome to ${APP_NAME}!`;
  mailOptions.text = `Hey there! Welcome to ${APP_NAME}. I hope you will enjoy our service.`;
  return mailTransport.sendMail(mailOptions).then(() => {
    console.log('New welcome email sent to:', email);
  });

}

Edit ***

上面的代码有效。我试图触发该功能emails而正确的名字是email.

使用 Firebase Cloud Functions 发送电子邮件的正确方法！

exports.sendTestEmail = functions.database.ref('/emails')
  .onWrite(event => {
    return sendTestEmail('[email protected] /cdn-cgi/l/email-protection');
  })
// [END onWrite]

// Sends a welcome email to the given user.
function sendTestEmail(email) {
  const mailOptions = {
    from: `${APP_NAME} <[email protected] /cdn-cgi/l/email-protection>`,
    to: email
  };
  // The user subscribed to the newsletter.
  mailOptions.subject = `Welcome to ${APP_NAME}!`;
  mailOptions.text = `Hey there! Welcome to ${APP_NAME}. I hope you will enjoy our service.`;
  return mailTransport.sendMail(mailOptions).then(() => {
    console.log('New welcome email sent to:', email);
  });

}