Afnetworking: downloadTaskWithRequest: doesn't overwrite existing files

[Joxy]

Hi,

I have a problem. I'd like to update files from server, and the downloadTaskWithRequest:progress:destination:completionHandler: method doesn't overwrite the existing files.

Do you have any idea how to do this?
My idea for a workaround is to delete the existing file in the destination block, but there must be a better solution.

Thanks!

[mattt]

My idea for a workaround is to delete the existing file in the destination block, but there must be a better solution.

That would be the suggested resolution. Having downloadTaskWithRequest:progress:destination:completionHandler: overwrite existing files feels like overstepping expectations. So yeah, that block would be the right place to put that kind of logic.

[AppsolutEinfach]

It should be mentioned that an existing file must not be overwritten in this way if an HTTP error occurs.
So check HTTP status code in destination block.

destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
   NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
   if ([httpResponse statusCode] == 200) {
      // delete existing file
   }
}

[lalkrishna]

destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
        NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
        documentsDirectoryURL = [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]];
        NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
        if ([httpResponse statusCode] == 200) {
            // delete existing file
            NSError *error;
            if ([fileManager isDeletableFileAtPath:documentsDirectoryURL.path]) {
                BOOL isFileDeleted = [fileManager removeItemAtPath:documentsDirectoryURL.path error:&error];
                if (isFileDeleted) {
                    NSLog(@"Deleted Existing File");
                }
            }
        }