-(void) updateUser:(NSDictionary*) params completion:(void (^)(NSString* message)) completion {

  NSString * urlStr = [NSString stringWithFormat: @"%@member/update", baseAPI];


  NSString *boundary = [self generateBoundaryString];

  // configure the request

  NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: [NSURL URLWithString: urlStr]];
  [request setHTTPMethod:@"POST"];

  [request setValue:[NSString stringWithFormat:@"Bearer %@",[[NSUserDefaults standardUserDefaults]
                                                             stringForKey:@"auth-token"]] forHTTPHeaderField:@"Authorization"];
  NSLog(@"TOKEN:- %@", [[NSUserDefaults standardUserDefaults] stringForKey:@"auth-token"]);
  // set content type

  NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];
  [request setValue:contentType forHTTPHeaderField: @"Content-Type"];

  // create body

  NSData *httpBody = [self createBodyWithBoundary: boundary parameters:params paths:@[] fieldName:@""];

  NSURLSession *session = [NSURLSession sharedSession];

  NSURLSessionTask *task = [session uploadTaskWithRequest:request fromData:httpBody completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {

    if (error) {
      NSLog(@"ERROR: %@", error.localizedDescription);
      completion(@"Error");
    } else {
      completion(@"Success");
    }

  }];
  [task resume];

}

- (NSString *)generateBoundaryString {
  return [NSString stringWithFormat:@"Boundary-%@", [[NSUUID UUID] UUIDString]];
}

- (NSData *)createBodyWithBoundary:(NSString *)boundary
                        parameters:(NSDictionary *)parameters
                             paths:(NSArray *)paths
                         fieldName:(NSString *)fieldName {
  NSMutableData *httpBody = [NSMutableData data];

  // add params (all params are strings)

  [parameters enumerateKeysAndObjectsUsingBlock:^(NSString *parameterKey, NSString *parameterValue, BOOL *stop) {
    [httpBody appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    [httpBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", parameterKey] dataUsingEncoding:NSUTF8StringEncoding]];
    [httpBody appendData:[[NSString stringWithFormat:@"%@\r\n", parameterValue] dataUsingEncoding:NSUTF8StringEncoding]];
  }];

  // add image data

  for (NSString *path in paths) {
    NSString *filename  = [path lastPathComponent];
    NSData   *data      = [NSData dataWithContentsOfFile:path];
    NSString *mimetype  = [self mimeTypeForPath:path];

    [httpBody appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    [httpBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"%@\"\r\n", fieldName, filename] dataUsingEncoding:NSUTF8StringEncoding]];
    [httpBody appendData:[[NSString stringWithFormat:@"Content-Type: %@\r\n\r\n", mimetype] dataUsingEncoding:NSUTF8StringEncoding]];
    [httpBody appendData:data];
    [httpBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
  }

  [httpBody appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

  return httpBody;
}

- (NSString *)mimeTypeForPath:(NSString *)path {
  // get a mime type for an extension using MobileCoreServices.framework

  CFStringRef extension = (__bridge CFStringRef)[path pathExtension];
  CFStringRef UTI = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, extension, NULL);
  assert(UTI != NULL);

  NSString *mimetype = CFBridgingRelease(UTTypeCopyPreferredTagWithClass(UTI, kUTTagClassMIMEType));
  assert(mimetype != NULL);

  CFRelease(UTI);

  return mimetype;
}