在Cloud功能Firebase中使用SendGrid发送交易电子邮件 [英] Send transactional email with SendGrid in cloud functions Firebase

问题描述

我遵循了本教程: https://angularfirebase .com/lessons/sendgrid-v3-nodejs-transactional-email-cloud-function/发送跨域电子邮件.下一个功能正常运行，但是使用了Google云功能的新更新

I followed this tutorial: https://angularfirebase.com/lessons/sendgrid-v3-nodejs-transactional-email-cloud-function/ to send transantional emails. The next function was working normally but with the new update of the google cloud functions https://firebase.google.com/docs/functions/beta-v1-diff#cloud-firestore has stopped working. What should I change?

const functions = require('firebase-functions');
const admin = require('firebase-admin');

admin.initializeApp(functions.config().firebase);
const SENDGRID_API_KEY = functions.config().sendgrid.key

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

exports.firestoreEmail = functions.firestore
.document('mensajes/{mensajeId}')
.onCreate(event => {

    const mensajeId = event.params.mensajeId;

    const db = admin.firestore()

    return db.collection('mensajes').doc(mensajeId)
        .get()
        .then(doc => {

            const mensaje = doc.data()

            const msg = {
                to: '[e-mail]',
                from: '[e-mail]',
                subject: 'Subject',
                templateId: 'myTemplateID',
                substitutionWrappers: ['{{', '}}'],
                substitutions: {

                    nombre: mensaje.nombre,
                    telefono: mensaje.telefono,
                    email: mensaje.email,
                    mensaje: mensaje.mensaje

                }
            };

            return sgMail.send(msg)
        })
        .then(() => console.log('email sent!'))
        .catch(err => console.log(err))


});

推荐答案

在发布Cloud Functions 1.0.x之后，Firestore发生了以下变化，因为您可以推断出

Following the release of Cloud Functions 1.0.x , the following has changed for Firestore, as you can deduce form the doc:

之前(< = v0.9.1)

exports.dbCreate = functions.firestore.document('notes/{noteId}').onCreate((event) => {
    const newData = event.data.data();
    const param = event.params.noteId;
});

现在(v1.0.0)

exports.dbCreate = functions.firestore.document('notes/{noteId}').onCreate((snap, context) => {
  const newData = snap.data(); 
  const param = context.params.noteId;
});

因此，在您的情况下，这意味着您的云功能应更改为:

So, in your case, that means your Cloud Function shall be changed to:

exports.firestoreEmail = functions.firestore
.document('mensajes/{mensajeId}')
.onCreate(event => {

    const mensajeId = context.params.mensajeId;  // <- Here is the change

    const db = admin.firestore()

    return db.collection('mensajes').doc(mensajeId)
        .get()
        .then(doc => {...
        .....

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