Existing mobile backend services can be really useful and quick to start with, however if we'd like to have more flexibility over the backend implementation an fairly easy solution would be to build a backend based on MongoDB and Node.JS. We will then drive this backend with EPAM Systems' open source iOS ROAD framework that has a number of good features like attributes and a 'zero-coding web service client' that really rocks !

1. MongoDB, Node.JS + EPAM ROAD
Backend és iOS kliens könnyedén
Molnár Szilveszter
Epam Systems
moszinet

2. Why ?

3. Topics we will cover
• Architecture
• Build the Backend
• Build the iOS app
• Summary

4. The App

8. MongoDB
• Open source
• High performance, high availability, automatic scaling
• Document database

9. {
name: “Szilveszter Molnar”,
age: 37,
groups: [ “mobileDev”, “iOS”, “Android”, “WP8” ]
}

12. DEMO
MongoDB

13. Node.JS
• A platform built on Google’s Open Source V8 engine
• event-driven, non-blocking I/O model
• JavaScript based

14. var http = require(‘http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': ‘text/plain'});
res.end('Hello Worldn');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');

15. Express
• Express: Node.JS Web Application Framework
• npm install express

16. Routing

17. // respond with "Hello World!" on the homepage
app.get('/', function (req, res) {
res.send('Hello World!');
})
// accept POST request on the homepage
app.post('/', function (req, res) {
res.send('Got a POST request');
})
// accept PUT request at /user
app.put('/user', function (req, res) {
res.send('Got a PUT request at /user');
})
// accept DELETE request at /user
app.delete('/user', function (req, res) {
res.send('Got a DELETE request at /user');
})

18. Mongoose
• MongoDB object modeling framework
• npm install mongoose

19. DEMO
Basic Car repository

20. EPAM ROAD

21. Rapid Objective-C
Applications Development
• Features
• Support for attributes (annotations), reflection
• Services (service locator pattern)
• Serialization (JSON, XML)
• Web Service client w/ zero-coding using attributes
• CocoaPods integration

22. Attributes
RF_ATTRIBUTE(RFSerializable)
@interface RDCar : NSObject { … }
RF_ATTRIBUTE(RFWebServiceCall, method = @"GET",
relativePath = @"/cars", prototypeClass=[RDCar class])
- (id)carListWithSuccess:failure:;

24. DEMO

25. Resources
• github.com/moszi/MongoNodeRoad
• server install script, backend + iOS source code
• github.com/epam/road-ios-framework
• mongodb.org
• nodejs.org, expressjs.com, mongoosejs.com

26. Köszönöm!
Molnár Szilveszter
Epam Systems
moszinet