谷歌云功能 - SendGrid - 400 错误请求

Question

我正在尝试在我的 Google Cloud Function 中使用 SendGrid 发送电子邮件。我在 Firebase 环境变量中有我的密钥，所以它存在。

const sgMail = require('@sendgrid/mail');
sgMail.setApiKey(SENDGRID_API_KEY);

这是我的 GCF .ts 代码：

代码

const msg = {
    to: to,
    from: from,
    subject: 'Email Subject',
    content: [{
        type: "text/html",
        value: body
    }]
};

await sgMail.send(msg)
    .then(r => {
        console.log(r);
    });

当我触发该函数并检查我的日志时，这是我得到的错误：

错误

error:  { Error: Bad Request
    at ResponseError (node_modules/@sendgrid/mail/node_modules/@sendgrid/helpers/classes/response-error.js:19:5)
    at Request.http [as _callback] (node_modules/@sendgrid/mail/node_modules/@sendgrid/client/src/classes/client.js:124:25)
    at Request.self.callback (node_modules/@sendgrid/mail/node_modules/request/request.js:185:22)
    at emitTwo (events.js:106:13)
    at Request.emit (events.js:191:7)
    at Request.<anonymous> (node_modules/@sendgrid/mail/node_modules/request/request.js:1161:10)
    at emitOne (events.js:96:13)
    at Request.emit (events.js:188:7)
    at IncomingMessage.<anonymous> (node_modules/@sendgrid/mail/node_modules/request/request.js:1083:12)
    at IncomingMessage.g (events.js:292:16)
code: 400,
message: 'Bad Request',
response: 
{ headers: 
    { server: 'nginx',
        date: 'Sun, 16 Dec 2018 16:27:56 GMT',
        'content-type': 'application/json',
        'content-length': '402',
        connection: 'close',
        'access-control-allow-origin': 'https://sendgrid.api-docs.io',
        'access-control-allow-methods': 'POST',
        'access-control-allow-headers': 'Authorization, Content-Type, On-behalf-of, x-sg-elas-acl',
        'access-control-max-age': '600',
        'x-no-cors-reason': 'https://sendgrid.com/docs/Classroom/Basics/API/cors.html' },
    body: { errors: [Object] } } }

有没有人熟悉这个错误？它提到了 CORS，但这没有任何意义，因为它是云功能，而不是浏览器。 SendGrid API 不是那么好，它主要遍历字段名称并且没有提供示例。感谢您提供的任何帮助！

编辑

只是为了更新问题，在我发送给自己的前端响应中，我发现与 GCF 日志中的 console.log(error) 不同的错误：

"Email failed: Bad Request (400)
The from object must be provided for every email send. 
It is an object that requires the email parameter, 
but may also contain a name 
parameter.  e.g. {"email" : "example@example.com"}  or 
{"email" : "example@example.com", "name" : "Example Recipient"}.
    from.email
    http://sendgrid.com/docs/API_Reference/Web_API_v3/Mail/errors.html#message.from"

编辑 2：解决方案

我的电子邮件来源来自 Firestore 中的一个文档，我试图获取一个不存在的字段，因为我查询了错误的文档，因此 from 是 undefined。更正了它，并根据下面的建议/答案删除了 msg 对象中的“内容”，一切正常。

Answer 1

根据documentation ...msg 有错误的元素：

const sg = require('@sendgrid/mail');
sg.setApiKey(process.env.SENDGRID_API_KEY);

const msg = {
    to: 'test@example.com',
    from: 'test@example.com',
    subject: 'Sending with SendGrid is Fun',
    text: 'and easy to do anywhere, even with Node.js',
    html: '<strong>and easy to do anywhere, even with Node.js</strong>',
};

sg.send(msg).then(() => {
    /* assume success */
})
.catch(error => {

    /* log friendly error */
    console.error(error.toString());

    /* extract error message */
    const {message, code, response} = error;

    /* extract response message */
    const {headers, body} = response;
});