Rails - Jun 2012 - ruby on rails server application with iPhone / Android IOS client? best practice how to begin...

Very interested in IOS and perhaps later Android client that connects to my 
ruby on rails server app.
What are good resources, books, tutorials, blogs to check and dive in as a 
ruby developer want to develop a simple client to begin with, who has 
experience on this topic and can share some insights?

In the basics my IOS client will be a client for the rails app wich is in 
basics just a simple social media site with just profiles and images I 
would like to list, later on I want to add messaging but for now get the 
basics and learn how this should work.
I have a bit of knowledge of objective C and a little bit of experience 
with Xcode and the basic principles, So I''m not a total Newbie on this.
Whats so unclear is how to "Connect"   Rails app <--> IOS
client.


* Advised is not to use general rails app controllers(?) so you write a set 
of "iPhone" controllers instead?
* Are there any write-ups on how to start with Xcode for connecting it to a 
rails app?
* Books, Ebooks, Blog posts anything to get you started?
* Commercial "starter kits or screencasts to buy to get you up and running 
fast based on professional best practice methods ? "
* You use JSON / XML to communicate?
* For login I use devise, heard its hard to implement in IOS clients ( In 
basics I will leave login out )

Any other thoughts on this matter? Would love to learn how to write a cool 
IOS client for my Rails app. 
Hope someone can get me and other future newbies to this matter on
"Track"
;)


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Probably the easiest way to communicate with your rails app from iOS is to 
use regular http requests.  I haven''t used json, but I''ve seen
Objective C
libraries for parsing json, so that''s an option.  It''s also
very simple to
create plists for use with [NSDictionary dictionaryWithContentsOfURL:url] 
(keep in mind that is a synchronous call, meaning your iOS app will not 
respond while the request is handled; Cocoa contains asynchronous commands 
as well but that''s definitely more advanced).  The ability to specify a
format for a request and use the appropriate view could make this simple to 
do in your existing controllers as well, although if the flow of your data 
will be completely different it''s also easy to set up an api
controller.

I''ve only handled HTTP 401 authentication in iOS, but that is very
simple
with the NSURLCredential class.  A quick glance at the Devise docs indicate 
it has support for 401 basic and digest authentication.

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http://allseeing-i.com/ASIHTTPRequest/ is tried and true
http://restkit.org/ is only slightly less so

iOS 5 added NSJSONSerialization -
http://developer.apple.com/library/ios/#documentation/Foundation/Reference/NSJSONSerialization_Class/Reference/Reference.html
 Which is nice.

Those bits should cover the glue. there are other options, of course.

TJ


On Jun 18, 2012, at 10:36 AM, Jim wrote:
> Probably the easiest way to communicate with your rails app from iOS is to
use regular http requests.  I haven''t used json, but I''ve seen
Objective C libraries for parsing json, so that''s an option. 
It''s also very simple to create plists for use with [NSDictionary
dictionaryWithContentsOfURL:url] (keep in mind that is a synchronous call,
meaning your iOS app will not respond while the request is handled; Cocoa
contains asynchronous commands as well but that''s definitely more
advanced).  The ability to specify a format for a request and use the
appropriate view could make this simple to do in your existing controllers as
well, although if the flow of your data will be completely different
it''s also easy to set up an api controller.
> 
> I''ve only handled HTTP 401 authentication in iOS, but that is very
simple with the NSURLCredential class.  A quick glance at the Devise docs
indicate it has support for 401 basic and digest authentication.
> 
> 
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