DNode Comfort Interface (Node.js Server, PHP Client)

_dnode.md

Comfortable DNode

Thin API wrappers around Node's dnode and PHP's erasys/dnode-php-sync-client for improved developer ergonomy.

p_dnode.js

Example from the original dnode:

var server = dnode({
  transform : function (s, cb) {
    cb(s.replace(/[aeiou]{2,}/, 'oo').toUpperCase())
  }
});

The same example with p_dnode:

const server = p_dnode({
  transform (s) {
    return s.replace(/[aeiou]{2,}/, 'oo').toUpperCase()
  }
})

Tip: For asynchronous operations, return a Promise / use async functions.

DNode.php

Example from erasys/dnode-php-sync-client:

$dnode = new \DnodeSyncClient\Dnode();
$connection = $dnode->connect('localhost', 8080);
$response = $connection->call('echo', array('Hello, world!'));
var_dump($response);

The same example used with the DNode wrapper:

$connection = Dnode::connect('localhost', 8080);
$response = $connection->echo('Hello, world!');
var_dump($response);

DNode.php

<?php

require_once __DIR__ . "/vendor/erasys/dnode-php-sync-client/DnodeSyncClient.php";

class DNode
{
    protected $connection;

    public static function connect($host, $port)
    {
        return new self($host, $port);
    }

    protected function __construct($host, $port)
    {
        $dnode = new \DnodeSyncClient\Dnode();
        $this->connection = $dnode->connect($host, $port);
    }

    public function __call($method, $args)
    {
        return $this->connection->call($method, $args);
    }
}

p_dnode.js

/*
 * p_dnode() is to be used just like dnode(), except that method definitions don't use callbacks but (may) return Promises.
 * Works in Node 6+
 */

const dnode = require('dnode')

function p_dnode (methods) {
  const config = Object
    .keys(methods)
    .reduce((carry, name) => {
      const fn = methods[name]

      return Object.assign(
        {},
        carry,
        {
          [name] (...args) {
            const cb = args.pop()
            Promise.resolve(fn(...args)).then(result => cb(result))
          }
        }
      )
    }, {})

  return dnode(config)
}

Object.assign(p_dnode, dnode)

module.exports = p_dnode