Test RPC in node.js

rpc-test.js

/*
- $ geth --shh
- install node.js and npm
- $ mkdir testFolder
- $ npm install oboe
- $ node
- copy the code below
- exceute: send('eth_blockNumber', []);

*/

var oboe = require('oboe')
var net = require('net');

var client = net.createConnection("/Users/youruser/Library/Ethereum/geth.ipc"); // path for Mac, linux is ~/.ethereum/geth.ipc

client.on("connect", function() {
    oboe(client)
        // called each time a full json object is parsed  
        .done(function(newHead){
        console.log(newHead);
        console.log();
    }); 
});

var id = 0;
send = function(method, params){
    client.write('{"id": '+ id++ +', "method": "'+ method +'", "params": '+ JSON.stringify(params) +'}');
};