Installing node-xmpp-client

To interact with an XMPP server, we will use a popular Node.js project called node-xmpp-client. This is a JavaScript implementation of an XMPP client that can run on both the server side or in the browser using Browserify (http://browserify.org/).

First, we will create a new folder for our project and install the library there. To do this, open a terminal window and type the following commands:

cd ~
mkdir xmpp-echo-bot
cd xmpp-echo-bot
npm install node-xmpp-client

This will install node-xmpp-client inside a new node_modules directory. At the time this book is published, node-xmpp-client should be at version 3.0.0 or greater.

Now we have our library installed, we start building our echo bot!