npm install choco-jsonrpc2
var rpc = require('choco-jsonrpc2');
var server = new rpc.Server();
/**
 * ping return pong
 */
/*
 * Describe the service
 * server.desc('ping', { myParam: "string" }, {}, "string");
 * server.desc('ping', { myParam: { type: "string", optional: "true" }}, { type: "string" });
 */
server.desc('ping', [], "string");
server.expose('ping', function(params, callback) {
    //...
    if (err) {
       return callback(-32000, 'ping failed'); // or callback(server.error_messages.INVALID_PARAMS);
    }
    callback(null, 'pong');
});
server.listen(3000, 'localhost');- Add tests
 - Implement batch imports
 - Add samples