Question

期望的行为

使用Gmail，OAuth2和Nodemailer从服务器端node.js文件发送电子邮件。

我尝试过的事情

相关文档

https://nodemailer.com/smtp/oauth2
https://nodemailer.com/usage/using-gmail
https://developers.google.com/gmail/api/auth/web-server

相关问题

send emails from MY gmail account with OAuth2 and nodemailer
How do I authorise an app (web or installed) without user intervention?
https://stackoverflow.com/a/47936349
https://stackoverflow.com/a/22572776

以上资源的说明中存在空白，并且一些信息已过时，因此下面的答案是我的最终实施方案，似乎可行。

我正在发布此解决方案以确认这是最佳做法，如果可以的话，可以节省其他时间。

Answer 1

以下内容对我有用，分为两个部分：

01） app.js

02） Google和OAuth2设置

app.js

var nodemailer = require("nodemailer");

var transporter = nodemailer.createTransport({
    host: 'smtp.gmail.com',
    port: 465,
    secure: true,
    auth: {
        type: 'OAuth2',
        user: local_settings.my_gmail_username,
        clientId: local_settings.my_oauth_client_id,
        clientSecret: local_settings.my_oauth_client_secret,
        refreshToken: local_settings.my_oauth_refresh_token,
        accessToken: local_settings.my_oauth_access_token
    }
});


var mail = {
    from: "John Smith <me@mydomain.com>",
    to: "user@userdomain.com",
    subject: "Registration successful",
    text: "You successfully registered an account at www.mydomain.com",
    html: "<p>You successfully registered an account at www.mydomain.com</p>"
}

transporter.sendMail(mail, function(err, info) {
    if (err) {
        console.log(err);
    } else {
        // see https://nodemailer.com/usage
        console.log("info.messageId: " + info.messageId);
        console.log("info.envelope: " + info.envelope);
        console.log("info.accepted: " + info.accepted);
        console.log("info.rejected: " + info.rejected);
        console.log("info.pending: " + info.pending);
        console.log("info.response: " + info.response);
    }
    transporter.close();
});

Google和OAuth设置

上面的代码需要进行以下设置：

01)转到https://console.developers.google.com

02)如果您没有项目，系统将提示您创建一个项目