AFNetworking 2.0 update on an existing project - ios

Question

I recently updated my project to 2.0 of AFNetworking and it appears that the AFHTTPClient file is missing.
I read the following at: https://github.com/AFNetworking/AFNetworking/wiki/AFNetworking-2.0-Migration-Guide
It appears i will now have to use AFHTTPRequestOperation ?
If so how can I modify the following piece of code to the new AFHTTPRequestOperation?
NSURL *url = [NSURL URLWithString:WEB_SERVICE_BASE_URL];
AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL:url];
[client registerHTTPOperationClass:[AFJSONRequestOperation class]];
[client setDefaultHeader:#"Accept" value:#"application/json"];
[client postPath:LOGIN_PATH parameters:[NSDictionary dictionaryWithObjectsAndKeys:self.userNameOrEmail.text ,#"userNameOrEmail",self.password.text,#"password", nil]
success:^(AFHTTPRequestOperation *operation, id responseObject)
{
bool success = [[responseObject valueForKeyPath:#"success"] boolValue];
NSString *displayMessage = [responseObject valueForKeyPath:#"displaymessage"];
if (success) {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:self.userNameOrEmail.text forKey:#"userNameOrEmail"];
[defaults setObject:self.password.text forKey:#"password"];
// [Flurry setUserID:self.userNameOrEmail.text];
[SVProgressHUD showSuccessWithStatus:displayMessage];
[self dismissViewControllerAnimated:YES completion:nil];
} else {
[SVProgressHUD showErrorWithStatus:displayMessage];
}
}
failure:^(AFHTTPRequestOperation *operation, NSError *error)
{
NSLog(#"error is: %#", error);
[SVProgressHUD showErrorWithStatus:MSG_SERVER_ERROR];
}];
UPDATE: I did the following:
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *parameters = [NSDictionary dictionaryWithObjectsAndKeys:self.userName.text ,#"user", self.email.text, #"email",self.password.text,#"password", nil];
[manager POST:WEB_SERVICE_BASE_URL parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
bool success = [[responseObject valueForKeyPath:#"success"] boolValue]? #"YES" : #"NO";
NSString *displayMessage = [responseObject valueForKeyPath:#"displaymessage"];
if (success) {
[SVProgressHUD showSuccessWithStatus:displayMessage];
[self.navigationController popToRootViewControllerAnimated:YES];
} else {
[SVProgressHUD showErrorWithStatus:displayMessage];
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
[SVProgressHUD showErrorWithStatus:MSG_SERVER_ERROR];
}];

Answer 1

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *parameters = [NSDictionary dictionaryWithObjectsAndKeys:self.userName.text ,#"user", self.email.text, #"email",self.password.text,#"password", nil];
[manager POST:WEB_SERVICE_BASE_URL parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
bool success = [[responseObject valueForKeyPath:#"success"] boolValue]? #"YES" : #"NO";
NSString *displayMessage = [responseObject valueForKeyPath:#"displaymessage"];
if (success) {
[SVProgressHUD showSuccessWithStatus:displayMessage];
[self.navigationController popToRootViewControllerAnimated:YES];
} else {
[SVProgressHUD showErrorWithStatus:displayMessage];
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
[SVProgressHUD showErrorWithStatus:MSG_SERVER_ERROR];
}];