node-xmpp-server | XMPP Server | Runtime Evironment library

Both node-xmpp-client and node-xmpp-server are deprecated and the whole node-xmpp family as well.

There is a separate https://github.com/xmppjs/xmpp.js which is a replacement for them.

This library is good for the following things:

• Node.js
• Web browser
• Native Script
• React Native

So you can use this lib if you want to interract from all above environments with your Ejabberd server.

Also, if we are talking about Web only - there is a good Web browser lib: http://strophe.im/strophejs/

Also, if we are talking about native mobile, there are 2 XMPP libs for native iOS & Android:

• https://github.com/robbiehanson/XMPPFramework for iOS native apps
• https://github.com/igniterealtime/Smack for Android native apps

=====

You do not need to use 'node-xmpp-server' at all. You already have an XMPP server (Ejabberd). You just need to interact with it from your mobile & web apps using above libs.

If you are going to use some Native Script / Reeact Native for mobile apps development then you can use a single lib xmpp.js on both mobile and web apps. If you are going to use native iOS/Android SDK - then you need to use XMPPFramework & Smack on mobile and Strophe.js (or xmpp.js) on web.