我目前正在尝试从firebase函数发送包含sendgrid API的确认电子邮件。
API不是问题,但似乎工作正常,我的问题是我无法让孩子创造价值(Firebase功能日志):
TypeError: Cannot read property 'participant_id' of undefined
at exports.SendEmail.functions.database.ref.onCreate.event (/user_code/index.js:15:38)
at Object.<anonymous> (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:112:27)
at next (native)
at /user_code/node_modules/firebase-functions/lib/cloud-functions.js:28:71
at __awaiter (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:24:12)
at cloudFunction (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:82:36)
at /var/tmp/worker/worker.js:716:24
at process._tickDomainCallback (internal/process/next_tick.js:135:7)
这是我的代码:
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.SendEmail = functions.database.ref('participants/{participant_id}').onCreate(event => {
const participant_id = event.params.participant_id;
const db = admin.database();
return db.ref(`participants/${participant_id}`).once('value').then(function(data){
const user = data.val();
const email = {
to: user.email,
from: 'recrutement.cisssme16@ssss.gouv.qc.ca',
subject: "Bienvenue au Blitz d'embauche 2018!",
templateId: 'dd3c9553-5e92-4054-8919-c47f15d3ecf6',
substitutionWrappers: ['<%', '%>'],
substitutions: {
name: user.name,
num: user.num
}
};
return sgMail.send(email)
})
.then(() => console.log('email sent to', user.email))
.catch(err => console.log(err))
});
这不是我的第一个firebase功能。我甚至复制了粘贴的以前的工作代码,这些代码被罚款,我仍然得到一个未定义的值!
这里的问题是什么? firebase是否已更改event.params
?
我的participant_id也是一个整数值(例如:3827),如果这改变了什么。
提前致谢!
答案 0 :(得分:0)
该函数的签名错误,请查看Handle event data上的此示例:
exports.makeUppercase = functions.database.ref('/messages/{pushId}/original')
.onCreate((snapshot, context) => {
console.log('Uppercasing', context.params.pushId, original);
});
因此,只需调整您的onCreate
功能即可完成设置:)