使用sendgrid从firebase进行的附件

Question

有人可以帮我吗？我正在尝试从Firebase函数中使用SendGrid将Firebase存储中的文件附加到电子邮件。任何帮助将不胜感激。我已经知道了：

export const sendEmail2 = functions.https.onCall(async (data, context) => {
    if (!context.auth) {
        throw new functions.https.HttpsError('failed-precondition', 'You must be logged in!');
    }
    const toEmail = data.toEmail;
    const fromEmail = data.fromEmail;
    const subject = data.subject;
    const body = data.body;
    const msg: any = {
        to: toEmail,
        from: fromEmail,
        subject: subject,
        html: body,
    };
    if (data.cc) {
        msg.cc = data.cc;
    }
    if (data.attachments) {
        msg.attachments = [];
        let content;
        data.attachments.forEach(
            async (att: any) => {
                const download = bucket.file(att.filepath);
                const contents = await download.download();
                content = contents[0].toString('base64');
                msg.attachments.push({
                    content: content,
                    filename: att.filename,
                    type: att.type,
                    disposition: 'attachment',
                    content_id: att.content_id,
                });
            }
        );
    }
    try {
        await sgMail.send(msg);
    } catch (e) {
        return { error: e };
    }

    return { success: true };

});

Answer 1

终于解决了！ forEach循环似乎不尊重异步。见下文：

export const sendEmail2 = functions.https.onCall(async (data, context) => {

if (!context.auth) {
    throw new functions.https.HttpsError('failed-precondition', 'You must be logged in!');
}
const toEmail = data.toEmail;
const fromEmail = data.fromEmail;
const subject = data.subject;
const body = data.body;
const msg: any = {
    to: toEmail,
    from: fromEmail,
    subject: subject,
    html: body,
};
if (data.cc) {
    msg.cc = data.cc;
}
if (data.attachments) {
    msg.attachments = [];
    let content;
    let download;
    let contents;
    for (const att of data.attachments) {
        download = bucket.file(att.filepath);
        contents = await download.download();
        content = contents[0].toString('base64');
        msg.attachments.push({
            content: content,
            filename: att.filename,
            type: att.type,
            disposition: 'attachment',
            content_id: att.content_id,
        });
    }
}
try {
    await sgMail.send(msg);
} catch (e) {
    return { error: e };
}

return { success: true };

}）;