AFNetworking calling curl command to get access token - ios

Question

I a curl command to get the access token, which looks below command -
curl --data 'client_id=XXX&grant_type=XXX&client_secret=XXX&scope=XXX' "https://abc-internal.XXX.com/as/resourceOwner" -k -i
I need to call this command from my objective C code to get the access token, here is my code which is not working -
NSURL *strURL = [NSURL URLWithString:#"https://abc-internal.XXX.com/as/resourceOwner"];
NSString *icpStr = [strURL absoluteString];
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
[manager.requestSerializer setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[manager.requestSerializer setValue:#"XXX" forHTTPHeaderField:#"client_id"];
[manager.requestSerializer setValue:#"XXX" forHTTPHeaderField:#"grant_type"];
[manager.requestSerializer setValue:#"XXX" forHTTPHeaderField:#"client_secret"];
[manager.requestSerializer setValue:#"XXX" forHTTPHeaderField:#"scope"];
AFSecurityPolicy *securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];
[securityPolicy setValidatesDomainName:NO];
[securityPolicy setAllowInvalidCertificates:YES];
manager.securityPolicy = securityPolicy;
[manager GET:icpStr parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
if ([responseObject isKindOfClass:[NSData class]])
{
NSError *parseError = nil;
NSDictionary *resultsDictionary = (NSDictionary *) [NSJSONSerialization JSONObjectWithData: responseObject options: 0 error: &parseError];
if (parseError)
{
NSLog(#"Parse Error %#",parseError);
}else{
NSLog(#"Results %#",resultsDictionary);
}
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error %#",error.localizedDescription);
}];
And i get error saying its bad request -
Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: bad request (400)"
Any suggestion would be much appreciated. I am new to objective c coding so i would really appreciate if someone can help me here.

Answer 1

NSString *URLString = #"https://abc-internal.XXX.com/as/resourceOwner";
AFHTTPSessionManager * manager = [AFHTTPSessionManager manager];
manager.responseSerializer =[AFHTTPResponseSerializer serializer];
[manager GET:URLString parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
if ([responseObject isKindOfClass:[NSData class]]) {
NSError *parseError = nil;
NSDictionary *resultsDictionary = (NSDictionary *) [NSJSONSerialization JSONObjectWithData: responseObject options: 0 error: &parseError];
if (parseError)
{
NSLog(#"Parse Error %#",parseError);
}else{
NSLog(#"Results %#",resultsDictionary);
}
}
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
}];