how to convert nsaaray into nsstring using nsurlconnection Post method - ios

Question

I am using two links.First link i created nsaaray for "id".This "id" i need to pass as parameter in nsurlconnection using POST method by second link.i tried lots but i stuck in while passing parameter "id".
nsaaray for id:
- (IBAction)button_drop:(id)sender {
NSString *parseURL =#"first_link";
NSString *encodeurl =[parseURL stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:encodeurl];
NSData *data = [NSData dataWithContentsOfURL:url];
if(data){
NSError *error;
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options: kNilOptions error:&error];
arrMsg = [json valueForKeyPath:#"Branches.branch_name"];
arrmsg1 =[json valueForKeyPath:#"Branches.id"];
[_picker2 reloadAllComponents];
}
}
POST method using nsurlconnection:
NSString *Branchid=#"3";
NSURL *url = nil;
NSMutableURLRequest *request = nil;
if([method isEqualToString:#"GET"]){
NSString *getURL = [NSString stringWithFormat:#"%#?branch_id=%#\n", URL, Branchid];
url = [NSURL URLWithString: getURL];
request = [NSMutableURLRequest requestWithURL:url];
NSLog(#"%#",getURL);
}else{ // POST
NSString *parameter = [NSString stringWithFormat:#"branch_id=%#",Branchid];
NSData *parameterData = [parameter dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
url = [NSURL URLWithString: URL];
NSLog(#"%#", parameterData);
request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPBody:parameterData];
arr= [NSMutableString stringWithUTF8String:[parameterData bytes]];
}
[request setHTTPMethod:method];
[request addValue: #"application/x-www-form-urlencoded; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if( connection )
{
mutableData = [NSMutableData new];
}

Answer 1

Try to create a "POST" method like this:-
NSDictionary *dict = [[NSDictionary alloc] initWithObjectsAndKeys:
Branchid, #"branch_id", nil];
NSString *newRequest = [dict JSONRepresentation];
NSData *requestData = [newRequest dataUsingEncoding:NSUTF8StringEncoding];
//If you are not using SBJsonParser Library then try the following:
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *urlString = #"YOUR URL String";
NSURL *requestURL = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:requestURL cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/x-www-form-urlencoded; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[request setValue:[NSString stringWithFormat:#"%lu", (unsigned long) [requestData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:requestData];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (connection) {
mutableData = [NSMutableData new];
}
Also, You can follow this link if you don't find out the answer working properly:-
Data in POST or GET methods
Send data in POST methods