Question

I have never interfaced with a web server before, i know little bit of xml but don’t know anything about http headers. I need to basically connect to a server and pass information (using Cocoa-touch) and this is the information that was provided:

Request headers: 
POST https://www.example.org/example 
Content-Type: text/xml 
Content-Length: 638 
Authorization: [[developer-key]]

and i was given this request body:

<LetterValues> 
<FullName><![CDATA[John Doe]]></FullName>  
</LetterValues>

The request body is more than just this, I removed a lot just to keep it simple.

So can someone point me to a tutorial or right direction about how I can pass in this information?

Answer 1

-(void)xmlParsingInBackground
{
NSString xmlString = [NSString stringWithFormat:@"Your XML REquest"];
NSURL * serviceUrl = [NSURL URLWithString:[NSString stringWithString:@"YOUR URL"]];
NSMutableURLRequest * serviceRequest = [NSMutableURLRequest requestWithURL:serviceUrl];
[serviceRequest setValue:@"text/xml" forHTTPHeaderField:@"Content-type"];
[serviceRequest setHTTPMethod:@"POST"];
[serviceRequest setHTTPBody:[xmlString dataUsingEncoding:NSUTF8StringEncoding]];
NSData *responseData;
NSURLResponse * serviceResponse;
NSError * serviceError;
responseData = [NSURLConnection sendSynchronousRequest:serviceRequest returningResponse:&serviceResponse error:&serviceError];
NSString *resp=[[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
if(responseData != NULL)
{       
    NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithData:responseData];
    [xmlParser setDelegate:self];
    //[xmlParser setDelegate:parser];       
    BOOL success = [xmlParser parse];

    if(success)
    { // DO SOMETHING HERE
            }

}

DO THE ABOVE THING, AND IMPLEMENT FOLLOWING:

 - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName 
attributes:(NSDictionary *)attributeDict 

 - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string  

 - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName 

THIS WILL HELP YOU. 🙂

ADDITION: Download code from following link that will tell you how to implement above methods Sizmic XML.