ios - Send parameter to server and get return value in NSString format -

this first time trying.

till successful in getting data server in json format.

now want is, have 2 nsstring values have send server , server check them. don't know checking mechanism behind. sending 2 strings , server return me try or false. , have show true or false thing.

all called onclick of uibutton

here tried,

nsstring *str = [nsstring stringwithformat:@"http://xxxxxxxxxxxxxxxxxxxxxxx/api/captchaimage/checkcaptchvalid?validstring={%@}&encodestring={%@}",string1,string2];  nsmutableurlrequest *req = [[nsmutableurlrequest alloc] init];     [req seturl:[nsurl urlwithstring:str]];      nsurlconnection *connget = [[nsurlconnection alloc]initwithrequest:req delegate:self];     if(connget)     {         nslog(@"connected successfully");     }     else     {         nslog(@"not connected successfully");     } 

it gives me nslog connected successfully, struck here, want response server in nsstring format, either true or false. can 1 guide me further steps.

i tried links, didn't much.

thanks in advance.

- (void)connection:(nsurlconnection *)connection didreceivedata:(nsdata *)data {     [mydata appenddata:data]; }  -(void)connectiondidfinishloading: (nsurlconnection *)connection {     response = [[nsstring alloc] initwithdata:mydata encoding:nsutf8stringencoding]; } 

try this, have not tested code. add appropriate delegate method. hope work you