Passing NSData to web service along with NSDictionary Parameter - ios

Question

I have all the AFNetworking Services written in Separate web service classe. upto now i have been doing it fine passing NSDictionary parameters. but now i got a problem when i need to pass NSData file to web service.
Here how im performing web service
NSData *imageData = UIImageJPEGRepresentation(self.profileImg.image, 0.5); // I need to pass this imageData
NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"yyyy-MM-dd hh:mm:ss"];
NSString *stringFromDate = [dateFormatter stringFromDate:[NSDate date]];
//Encrypting Password
NSString *passwordString = _password.text;
NSString *passwordMD5 = [passwordString MD5String];
NSDictionary *params = #{#"username": _username.text,
#"password": passwordMD5,
#"email": _email.text,
#"date":stringFromDate};
WebService *serviceObj = [[WebService alloc] init];
serviceObj.delegate = self;
[serviceObj performSelectorInBackground:#selector(doRegister:) withObject:params];
Here how i have written web service
NSMutableDictionary * parameters = [[NSMutableDictionary alloc]initWithDictionary:params];
NSURL *baseURL = [NSURL URLWithString:#"http://www.example.com/register.php"];
AFHTTPSessionManager * manager = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
[manager POST:#"" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
[formData appendPartWithFileData:imageData name:#"image" fileName:#"profile.png" mimeType:#"image/png"];
} progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
[delegate didReceiveRegisterResponse:responseObject];
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
}];
but i dont know how to assign that imagedata now.

Answer 1

I Have done it passing NSData and NSDictionary inside array. like below
[self performSelectorInBackground:#selector(reloadPage:)
withObject:[NSArray arrayWithObjects:pageIndex,firstCase,nil] ];
- (void) reloadPage: (NSArray *) args {
NSString *pageIndex = [args objectAtIndex:0];
NSString *firstCase = [args objectAtIndex:1];
}
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