problems uploading text files iOS

Hi everbody,

in order to upgrade my app to Dropbox 2 I was trying upload and download festures.

While download seems to work I have some problems with uploading.

I am working with textual file with a small size, maximum 1 MB.

I followed the tutorial but after the upload is finished I only see on dropbox an empty small file of about 190 byte. It seems it is not able to upload the content of the file. Here is my code where db is the path of the file to upload. Thanks very much or the help.

NSData *fileData = [db dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO];
DBFILESWriteMode *mode = [[DBFILESWriteMode alloc] initWithOverwrite];
NSString *pathToSave = [[_startDirectory stringByAppendingString:@"/"] stringByAppendingString:file];
[[[userClient.filesRoutes uploadData:pathToSave mode:mode autorename:@(YES) clientModified:nil mute:@(NO) inputData:fileData] 
setResponseBlock:^(DBFILESFileMetadata *result, DBFILESUploadError *routeError, DBRequestError *networkError) {
if (result) {
NSLog(@"result:%@\n", result);}
                               else {
                                   NSLog(@"%@\n%@\n", routeError, networkError);
                               }
                           }] setProgressBlock:^(int64_t bytesUploaded, int64_t totalBytesUploaded, int64_t totalBytesExpectedToUploaded) {
                               NSLog(@"progress:\n%lld\n%lld\n%lld\n", bytesUploaded, totalBytesUploaded, totalBytesExpectedToUploaded);
                           }];