无法在浏览器中使用Gmail API发送邮件

Question

我正在尝试在浏览器应用程序中使用Gmail API发送电子邮件。我的功能如下：

function sendMessage(recepient, message, done) {
    var base64EncodedEmail = '';
    var request = gmail.users.messages.send({
        to: recepient,
        userId: 'me',
        resource: {
            raw: base64EncodedEmail
        }
    });
    request.execute(done);
}

我得到以下信息：

'raw' RFC822 payload message string or uploading message via /upload/* URL required

我在这里做错了什么？

Answer 1

弄清楚了...感谢Google REST API - message in an RFC 2822 formatted and base64url encoded string。新功能是

function sendMessage(recepient, subject, message, done) {
    var base64EncodedEmail = btoa(`From: me\r\nTo: ${recepient}\r\nSubject: ${subject}\r\n\r\n${message}`)
        .replace(/[\/\+]/g, '_')
        .replace(/=+$/, '');
    var request = gmail.users.messages.send({
        userId: 'me',
        resource: { raw: base64EncodedEmail }
    });
    request.execute(done);
}