Demo CommonJS module for Titanium Mobile interaction with Drupal Services 3.x REST + JSON interface

00-README.TXT

This is a simple CommonJS module to wrap Titanium Ti.Network.HttpClient calls to interact with Drupal Services.

NOTE:  Code updated at @TiConf using callback functions.

Tested using:

Drupal 6.24
Services 3.1
Titanium Mobile SDK 1.8.2 (Android 2.2 SDK)

Services module configured as this example:
http://www.tylerfrankenstein.com/code/android-app-with-drupal-7-services-phonegap-and-jquery-mobile

Special thanks to @grzegorzbartman (www.openbit.pl) for coaching and inspiration.

app.js

// NOTE:  Below code is deprecated and I need to update using callback functions instead of
// app-level events

/*
Ti.API.info('starting up...');

var drupalServices = require('drupalServices');
var REST_URL = 'http://192.168.1.102:8888/drupal/api/rest/';

Ti.App.addEventListener('net:userLogoutReturned', function(data) {
	Ti.API.info('userLogoutReturned: '+JSON.stringify(data));
})

Ti.App.addEventListener('net:userLoginReturned', function(data) {
	Ti.API.info('userLoginReturned: '+JSON.stringify(data));	
})

Ti.App.addEventListener('net:systemConnectReturned', function(data) {
	Ti.API.info('systemConnectReturned: '+JSON.stringify(data));
})

Ti.App.addEventListener('net:nodeListReturned', function(data) {
	Ti.API.info('nodeList returned: ');
	for (var i = 0; i < data.length; i++) {
		Ti.API.info('node '+i+':'+JSON.stringify(data[i]));  
	}
});

drupalServices.userLogout(REST_URL);
drupalServices.userLogin('<drupal username>','<drupal password>',REST_URL);
drupalServices.systemConnect(REST_URL);
drupalServices.nodeList(REST_URL);

// give userLogin time to complete, then attempt createNode
setTimeout(function() { 
	Ti.API.info('3 seconds, create node!');
	// use Date() to create some pseudo-random numbers for title and body text tests
	var date = new Date();
	drupalServices.createNode( 
		{node:{
			title: 'Titanium ' + date.getSeconds(),
			type:'story',
			body: 'body text, minutes: '+date.getMinutes(),
		  }
		},
		REST_URL)
	}, 3000);
*/

drupalServices.js

/*
 *  @desc Retrieve list of nodes
 *  @param {String} url Service endpoint URL
 *  @param {Object} opts Utility payload, should have opts.success() and opts.error() callback functions
 * 
 */

var nodeList = function(url, opts) {
	var xhr = Titanium.Network.createHTTPClient();
	xhr.open('GET', url+'node.json');
	xhr.send();
	
	xhr.onload = function() {
		var jsonObject = JSON.parse(this.responseText);
		opts.success && opts.success(jsonObject);
	};
	xhr.onerror = function(e) {
		console.info("nodeList error: "+JSON.stringify(this));
		opts.error && opts.error({
			"status":xhr.status,
			"statusText":xhr.statusText
		});
	};
};

/*
 *  @desc Check current session status
 *  @param {String} url Service endpoint URL
 *  @param {Object} opts Utility payload, should have opts.success() and opts.error() callback functions
 * 
 */

var systemConnect = function(url, opts) {
	var xhr = Titanium.Network.createHTTPClient();
	url = url + 'system/connect.json';
	Ti.API.info('url: '+url);
	xhr.open('POST', url);
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	xhr.send();

	xhr.onload = function() {
		var jsonObject = JSON.parse(this.responseText);
		opts.success && opts.success(jsonObject);
	};
	xhr.onerror = function(e) {
		Titanium.API.info(e.error);
		opts.error && opts.error({
			"status":xhr.status,
			"statusText":xhr.statusText
		});
	};
};

/*
 *  @desc Login user given username and password
 *  @param {String} url Service endpoint URL
 *  @param {Object} opts Utility payload, should have properties: username, password, success(), and error() callback functions
 * 
 */

var userLogin = function(url, opts) {
	var xhr = Titanium.Network.createHTTPClient();
	url = url + 'user/login.json';

	xhr.open('POST', url);
	xhr.setRequestHeader('Content-Type','application/json; charset=utf-8');

	xhr.send({"username":opts.username,"password":opts.password});

	xhr.onload = function() {
		var jsonObject = JSON.parse(this.responseText);
		opts.success && opts.success(jsonObject);
	};
	xhr.onerror = function(e) {
		Titanium.API.info('userLogin error: '+e.error);
		opts.error && opts.error({
			"status":xhr.status,
			"statusText":xhr.statusText
		});
	};
};

/*
 *  @desc Logout user
 *  @param {String} url Service endpoint URL
 *  @param {Object} opts Utility payload, should have properties: success() and error() callback functions
 * 
 */

var userLogout = function(url, opts) {
	var xhr = Titanium.Network.createHTTPClient();
	url = url + 'user/logout.json';

	Ti.API.info('url: '+url);
	xhr.open('POST', url);
	xhr.setRequestHeader('Content-Type','application/json; charset=utf-8');

	xhr.send();

	xhr.onload = function() {
		var jsonObject = JSON.parse(this.responseText);
		opts.success && opts.success(jsonObject);		
	};
	xhr.onerror = function(e) {
		Titanium.API.info('userLogout error: '+e.error);
		opts.error && opts.error({
			"status":xhr.status,
			"statusText":xhr.statusText
		});
	};
};

/*
 *  @desc Create Drupal node
 *  @param {String} url Service endpoint URL
 *  @param {Object} opts Utility payload, should have properties: node property (JSON object), success() and error() callback functions
 * 
 */

var createNode = function(url, opts) {
	//console.info(JSON.stringify(opts.node));
	var xhr = Titanium.Network.createHTTPClient();

	url = url + 'node';

	Ti.API.info('creating node, url: '+url);
	
	xhr.open('POST', url);

	xhr.setRequestHeader('Content-Type','application/json');

	var obj = JSON.stringify(opts.node);
	//Ti.API.info('node object: '+ obj);

	xhr.send(obj);
	
	xhr.onload = function(e) {
		//var nodeObject = JSON.parse(this.responseText);
		Ti.API.info('nodeObject: '+JSON.stringify(e));
		var jsonObject = JSON.parse(this.responseText);
		opts.success && opts.success(jsonObject);
	};
	
	xhr.onerror = function(e) {
		// should do something more robust
		Titanium.API.info('createNode error: '+xhr.statusText);
		opts.error && opts.error({
			"status":xhr.status,
			"statusText":xhr.statusText
		});
	};
};

/*
 *  @desc Retrieve Drupal node creation form structure, including CCK fields
 *  @desc Requires custom Drupal module to expose node form to Services, D6 version: https://gist.github.com/1966524
 *  @param {String} url Service endpoint URL
 *  @param {Object} opts Utility payload, should have properties: success() and error() callback functions
 * 
 */

var nodeForm = function(url, opts) {
	var xhr = Titanium.Network.createHTTPClient();
	xhr.open('GET', url+'form/' + opts.node);
	xhr.send();
	
	xhr.onload = function() {
		var jsonObject = JSON.parse(this.responseText);
		opts.success && opts.success(jsonObject);
	};
	xhr.onerror = function(e) {
		opts.error && opts.error({
			"status":xhr.status,
			"statusText":xhr.statusText
		});
	};
};

exports.createNode = createNode;
exports.userLogout = userLogout;
exports.userLogin = userLogin;
exports.nodeList = nodeList;
exports.systemConnect = systemConnect;
exports.nodeForm = nodeForm;