how to do an http post in cocoa on the iPhone - cocoa-touch

Question

Can anyone paste some code on how to do an http post of a couple values?

Answer 1

Second answer on a google search looks like what you probably need:
http://www.iphonedevforums.com/forum/sample-code/69-getting-content-url.html

Answer 2

// You can drive an NSURLConnection synchronously using sendSynchronousRequest:returningResponse:error:
// but that will block the entire thread until the response is received
// thebodyData = payload sent to server (in the correct format)
// theMimeType = mineType of the payload
//url is the appropriate url for the http POST call
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest setHTTPMethod:#"POST"];
NSURLConnection *theConnection = [[NSURLConnection alloc]initWithRequest:theRequest delegate:self];
if(theConnection)
{
webData = [[NSMutableData data]retain];
// give the details of the payload -- mine time and body content.
[theRequest setValue: theMimeType forHTTPHeaderField:#"Content-Type"];
[theRequest setHTTPBody:theBodyData];
}
else
{
NSLog(#"theConnection is NULL");
}
// the delegate methods templates...
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[webData setLength:0]; // clear the data incase it was a redirect in between.
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[webData appendData:data]; // collect the data from server as it comes in.
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
[[NSAlert alertWithError:error] runModal]; // report the error
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
// Once this method is invoked, "webData" contains the complete result
}

Answer 3

Here is some basic code that doest a POST call:
//url is the appropriate url for the http POST call
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest setHTTPMethod:#"POST"];
NSURLConnection *theConnection = [[NSURLConnection alloc]initWithRequest:theRequest delegate:self];
if(theConnection)
{
webData = [[NSMutableData data]retain];
}
else
{
NSLog(#"theConnection is NULL");
}
You need to implement the appropriate delegate methods of the NSURLConnection.