How to set Http header Fields in Objective-C?

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You can pass the information in header using NSMutableURLRequest class and then call the NSURLConnection class(it will call the connection delegate).

see the following code,


NSMutableURLRequest *theRequest=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:[myServerUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]
                                                        cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
                                                    timeoutInterval:60.0];
//do post request for parameter passing 
[theRequest setHTTPMethod:@"POST"];

//set the content type to JSON
[theRequest setValue:@"xml" forHTTPHeaderField:@"Content-Type"];

//passing key as a http header request 
[theRequest addValue:@"value1" forHTTPHeaderField:@"key1"];

//passing key as a http header request
[theRequest addValue:@"value2" forHTTPHeaderField:@"key2"];

NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];

if( theConnection )
{
    webData = [[NSMutableData data] retain];
}
else
{
    NSLog(@"theConnection is NULL");
}

[theConnection release];

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