npm install msfnode

./msfrpcd -U myLogin -P myPassword -f

var metasploitClient = require('msfnode');


var onConnect = function(err,token) {
    if (err) {
        console.log(err.error_message);
        process.exit(0);
    }
    metasploitVersion();
}

var metasploitVersion = function() {

    // Do not care about token, it will automaticaly
    // be added as the second arguments
    //
    // The first value of the array is the function
    // you want to call. Full list is available
    // in metasploit remote api documentation

    var args = ['core.version'];

    client.exec(args,function(err,r) {

        if (err) return console.log('Error: '+err);

        console.log('-> Version: '+r.version);
        console.log('-> Api: '+r.api);
        console.log('-> Ruby: '+r.ruby);
    });
}


var client = new metasploitClient({
    login:'myLogin',
    password:'myPassword',
    host:'localhost',   // optional
    port:55553,         // optional
    protocol:'https',   // optional
    apiVersion:'1.0',   // optional
    apiPath:'/api/'     // optional
});

client.on('connected',onConnect);