Question

我正在尝试将Twilio视频应用程序部署到Firebase托管。一切正常，除了当我尝试连接视频会议时，它告诉我Twilio令牌无效。

我发现我需要设置Google Cloud功能来解决此问题。您如何将server.js文件转换为云函数？

这是我的代码server.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'));

我想我可以将其移到云函数的index.js文件中，并添加以下内容以仍然连接到我的.env文件变量：如果我将express函数放在这里：

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 cloud function，您需要删除服务器侦听器，并且必须设置本地Firebase环境以进行部署和开发

转换云功能的步骤

# 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

转换为云函数后，您当前的代码将如下所示

您还可以将每条路线划分为单独的模块

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);

请阅读官方文档here

使用Firebase托管连接到令牌服务器时出现问题

1 个答案:

转换云功能的步骤