如何在防火墙/代理后面使用Firebase?

本文介绍了如何在防火墙/代理后面使用Firebase?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我们正在运行一个简单的应用程序，该应用程序连接到Firebase会读取一些数据.它无法连接，并显示以下超时错误:

We are running a simple application that connects to Firebase are reads some data. It fails to connect with the following timeout error:

@firebase/database: FIREBASE WARNING: {"code":"app/invalid-credential", "message":"Credential implementation provided to initializeApp() via the \"credential\" property failed to fetch a valid Google OAuth2 access token with the following error: \"Failed to parse access token response: Error: Error while making request: connect ETIMEDOUT

我们在防火墙/代理后面，并且似乎阻止了往返Firebase的通信，因此连接失败.我的问题是，需要打开哪些端口以及要使用哪个目标URL才能使该应用程序正常工作?

We are behind Firewall / Proxy and it appears that is blocking traffic to/from Firebase and hence failed connection. My question is what ports need to be opened and to what destination URLs to make this application work normally?

任何帮助将不胜感激！

推荐答案

最后，在为问题苦苦挣扎了几天之后，它开始工作了.需要联系网络团队并要求执行以下操作:

Finally, after struggling with the issue for several days got it working. Needed to contact network team and request to perform following actions:

打开端口5228、5229、5230进行Firebase通信.

在源服务器和以下URL之间的代理级别打开通信:

Open ports 5228, 5229, 5230 for Firebase communication.

Opened communication at proxy level between the source server and following URLs:

fcm.googleapis

fcm.googleapis

gcm-http.googleapis

gcm-http.googleapis

accounts.google

accounts.google

{project-name} .firebaseio

{project-name}.firebaseio

在我的node.js应用程序中添加了以下代码:

Added following code in my node.js application:

var globalTunnel = require('global-tunnel-ng'); globalTunnel.initialize({ host: '<proxy-url>', port: <proxy-port>, //proxyAuth: 'userId:password', // optional authentication sockets: 50 // optional pool size for each http and https });

已安装模块global-tunnel-ng:

npm install global-tunnel-ng

它解决了我的问题，希望也能对其他人有所帮助. :-)

It solved the my problem and I hope it can help others too. :-)