用于在Node.js中发送邮件的Gmail API [英] Gmail API for sending mails in Node.js

问题描述

• 我已遵循Google自己的 Node.js快速入门指南，并成功连接并使用gmail.users.labels.list()功能.
• 我已经在此处检查了问题/答案，例如这一个(未使用Node.js API，询问)，或这一个(类似于

• I have followed Google's own Node.js quickstart guide and successfully connect and use the gmail.users.labels.list() functionality.
• I have checked for questions/answers here, like this one (that is not using the Node.js API I am asking about), or this one (similar to this one) which apparently is the same problem I have but the solution does not work.

使用 Google的Node.js API 时，出现错误，尝试发送一封电子邮件.错误是:

When using Google's Node.js API I get a error trying to send a email. The error is:

{
    "code": 403,
    "errors": [{
        "domain": "global",
        "reason": "insufficientPermissions",
        "message": "Insufficient Permission"
    }]
}

我的设置:

fs.readFile(secretlocation, function processClientSecrets(err, content) {
    if (err) {
        console.log('Error loading client secret file: ' + err);
        return;
    }
    authorize(JSON.parse(content), sendMessage);
});

function sendMessage(auth) {
    var raw = makeBody('[e-mail]', '[e-mail]', 'subject', 'message test');
    gmail.users.messages.send({
        auth: auth,
        userId: 'me',
        message: {
            raw: raw
        }
    }, function(err, response) {
        res.send(err || response)
    });
}

函数processClientSecrets来自我上面提到的Google指南.它读取具有access_token和refresh_token的.json文件. makeBody函数是用于生成已编码的正文消息的

The function processClientSecrets is from the Google guide i mentioned above. It reads my .json file that has my access_token and refresh_token. The makeBody function is a to make a encoded body message.

在配置变量中，我也有:

In the config variabels I have also:

var SCOPES = [
    'https://mail.google.com/',
    'https://www.googleapis.com/auth/gmail.modify',
    'https://www.googleapis.com/auth/gmail.compose',
    'https://www.googleapis.com/auth/gmail.send'
];

为什么应该起作用:

• 授权过程适用于gmail.users.labels.list()方法.
• 如果我在 Google的测试页.

Why it should work:

• the authorization process works for the gmail.users.labels.list() method.
• the message body I'm testing works if I test it at Google's test page.

我的设置错误吗? API是否进行了更改?我想念什么?

Is my setup wrong? Have there been changes in the API? What am I missing?

推荐答案

好，所以我发现了问题.

Ok, so I found the problem(s).

问题1 遵循 Node.js快速入门指南时，该教程中的示例具有

Problem #1 While following the Node.js quickstart guide the example in that tutorial has

var SCOPES = ['https://www.googleapis.com/auth/gmail.readonly'];

当我得到如下所示的.json时:

And when I got the .json that looks like:

{
    "access_token": "xxx_a_long_secret_string_i_hided_xxx",
    "token_type": "Bearer",
    "refresh_token": "xxx_a_token_i_hided_xxx",
    "expiry_date": 1451721044161
}

生成的那些令牌仅考虑了教程代码中的 范围.

those tokens where produced taking into account only the auth/gmail.readonly scope in the tutorial code.

所以我删除了第一个.json，从我的最终作用域数组中添加了作用域(我在问题中发帖了)，并再次运行了教程设置，得到了一个新的令牌.

So I deleted the first .json, added the scopes from my final scope array (i posted in the question) and ran the tutorial setup again, receiving a new token.

问题2

在传递给API的对象中，我正在发送:

In the object passed to the API I was sending:

{
    auth: auth,
    userId: 'me',
    message: {
        raw: raw
    }
}

但这是错误的，message键应称为resource.

but that is wrong, message key should be called resource.

这是我添加到教程代码中的内容:

This is what I added to the tutorial's code:

function makeBody(to, from, subject, message) {
    var str = ["Content-Type: text/plain; charset=\"UTF-8\"\n",
        "MIME-Version: 1.0\n",
        "Content-Transfer-Encoding: 7bit\n",
        "to: ", to, "\n",
        "from: ", from, "\n",
        "subject: ", subject, "\n\n",
        message
    ].join('');

    var encodedMail = new Buffer(str).toString("base64").replace(/\+/g, '-').replace(/\//g, '_');
        return encodedMail;
}

function sendMessage(auth) {
    var raw = makeBody('[e-mail]', '[e-mail]', 'test subject', 'test message');
    gmail.users.messages.send({
        auth: auth,
        userId: 'me',
        resource: {
            raw: raw
        }
    }, function(err, response) {
        res.send(err || response)
    });
}

并使用以下命令进行调用:

And call everything with:

fs.readFile(secretlocation, function processClientSecrets(err, content) {
    if (err) {
        console.log('Error loading client secret file: ' + err);
        return;
    }
    // Authorize a client with the loaded credentials, then call the
    // Gmail API.
    authorize(JSON.parse(content), sendMessage);
});

这篇关于用于在Node.js中发送邮件的Gmail API的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！