Rest web service

I am aware of using the soap webservices on iphone .Now i want to use REST. Can anybody tell me, What are the methods associated with calling and use of rest webservice? Thanks in advance.

From stackoverflow

• In many ways accessing RESTful web services from the iPhone is extremely similar to accessing SOAP web services. As your probably know, in a RESTful web service, you do not send an XML (or other data store) request.

  You want to look at the following classes:

  • NSURL
  • NSMutableURLRequest
  • NSURLConnection

  Here is some sample code for making the RESTful request:

  NSURL *url =[NSURL URLWithString:@"theURLofTheWebService"];
  NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
  [theRequest setHTTPMethod:@"GET"];
  
  NSURLConnection *theConnection = [[NSURLConnection alloc]initWithRequest:theRequest delegate:self];
  if(theConnection)
  {
   webData = [[NSMutableData data]retain];
  }
  else
  {
   NSLog(@"theConnection is NULL");
  }
  

  You also want to implement the following delegate methods of NSURLConnection:

  • - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
  • - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
  • - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
  • - (void)connectionDidFinishLoading:(NSURLConnection *)connection

  Finally depending on the type of data returned (XML, JSON, etc.) you can use the appropriate ways to parse that data.