连接到具有Firebase主机的令牌服务器时出现问题

Question

我正在尝试将Twilio视频应用程序部署到Firebase主机上。一切都很好，除了当我试图连接到视频会议时，它告诉我Twilio代币无效。

我发现我需要设置谷歌云功能来解决这个问题。如何将server.js文件转换为云函数？

这是我的代码服务器.js代码：

const express = require('express');
const app = express();
const path = require('path');
const AccessToken = require('twilio').jwt.AccessToken;
const VideoGrant = AccessToken.VideoGrant;
require('dotenv').config();
const MAX_ALLOWED_SESSION_DURATION = 14400;
const twilioAccountSid = process.env.TWILIO_ACCOUNT_SID;
const twilioApiKeySID = process.env.TWILIO_API_KEY_SID;
const twilioApiKeySecret = process.env.TWILIO_API_KEY_SECRET;
app.use(express.static(path.join(__dirname, 'build')));
app.get('/token', (req, res) => {
const { identity, roomName } = req.query;
const token = new AccessToken(twilioAccountSid, twilioApiKeySID, twilioApiKeySecret, {
ttl: MAX_ALLOWED_SESSION_DURATION,
});
token.identity = identity;
const videoGrant = new VideoGrant({ room: roomName });
token.addGrant(videoGrant);
res.send(token.toJwt());
console.log(`issued token for ${identity} in room ${roomName}`);
});
app.get('*', (_, res) => res.sendFile(path.join(__dirname, 'build/index.html')));
app.listen(8081, () => console.log('token server running on 8081'));

我想如果我把express函数放在这里，我可以把它移到cloud函数index.js文件中，并添加以下内容来连接我的.env文件变量：

const functions = require('firebase-functions');
const config = functions.config();
// Porting envs from firebase config
for (const key in config.envs){
process.env[key.toUpperCase()] = config.envs[key];
}

Answer 1

要将其转换为Firebase云功能，您需要删除服务器侦听器，并且必须设置本地Firebase环境来部署和开发

转换云函数的步骤

# Install firebase-tools
npm install -g firebase-tools
# Login and initialize project
firebase login
firebase init functions
# For local dev
firebase serve 
# Deploy the function to cloud
firebase deploy

转换为云功能后，您当前的代码将如下所示

您还可以将每条路线放入单独的模块

const functions = require('firebase-functions');
const express = require('express');
const app = express();
const path = require('path');
const AccessToken = require('twilio').jwt.AccessToken;
const VideoGrant = AccessToken.VideoGrant;
require('dotenv').config();
const router = express.Router();
const MAX_ALLOWED_SESSION_DURATION = 14400;
const twilioAccountSid = process.env.TWILIO_ACCOUNT_SID;
const twilioApiKeySID = process.env.TWILIO_API_KEY_SID;
const twilioApiKeySecret = process.env.TWILIO_API_KEY_SECRET;
app.use(express.static(path.join(__dirname, 'build')));
router.get('/token', (req, res) => {
const { identity, roomName } = req.query;
const token = new AccessToken(twilioAccountSid, twilioApiKeySID, twilioApiKeySecret, {
ttl: MAX_ALLOWED_SESSION_DURATION,
});
token.identity = identity;
const videoGrant = new VideoGrant({ room: roomName });
token.addGrant(videoGrant);
res.send(token.toJwt());
console.log(`issued token for ${identity} in room ${roomName}`);
});
router.get('*', (_, res) => res.sendFile(path.join(__dirname, 'build/index.html')));
// Your cloud function will be like : https://<region>-<appname>.cloudfunctions.net/twilioApp
exports.twilioApp = functions.https.onRequest(router);

请阅读此处的官方文档