PubNub

pubnub.js

var npm = require("npm"),
    querystring = require("querystring");

if(process.env.CHANNEL && process.env.PUBLISH_KEY && process.env.SUBSCRIBE_KEY) {

    npm.load({}, function (err) {
     
        npm.commands.install(["pubnub"], function (err) {
                     
            var header, body;
            
            try {
              header = querystring.parse(process.env.HTTP_HEADER);
            } catch(ex){
              header = process.env.HTTP_HEADER;  
            }

            try {
              body = JSON.parse(process.env.HTTP_BODY);
            } catch(ex){
              body = process.env.HTTP_BODY;  
            }

            var pubnub = require("pubnub").init({
                publish_key: process.env.PUBLISH_KEY,
                subscribe_key: process.env.SUBSCRIBE_KEY
            });
             
            pubnub.publish({ 
                channel   : process.env.CHANNEL,
                message   : {header: header, body: body},
                callback  : function(e) { console.log( "SUCCESS", e ); process.exit(0); },
                error     : function(e) { console.log( "FAILURE", e ); process.exit(500); }
            });
            
        });
        
    });

} else {
    process.exit(500);
}