-(IBAction)uploadFile:(id)sender{

if (![self.credentials canAuthorize]) {
    GTMOAuth2WindowController *windowController;
    windowController = [[[GTMOAuth2WindowController alloc] initWithScope:scope clientID:kClientID clientSecret:kClientSecret keychainItemName:kKeychainItemName resourceBundle:nil] autorelease];
    [windowController signInSheetModalForWindow:self.window
                                       delegate:self
                               finishedSelector:@selector(windowController:finishedWithAuth:error:)];

}else{
    NSLog(@"Credentials already authorized.");
}



GTLDriveFile *driveFile = [GTLDriveFile object];
driveFile.title = @"myfile";
driveFile.descriptionProperty = @"Uploaded by Google Drive API test.";
driveFile.mimeType = @"text/plain";

NSData *data = [[NSFileManager defaultManager] contentsAtPath:@"/Users/Blake/Downloads/glm/util/autoexp.txt"];




GTLUploadParameters *params = [GTLUploadParameters uploadParametersWithData:data MIMEType:driveFile.mimeType];



GTLQueryDrive *query = [GTLQueryDrive queryForFilesInsertWithObject:driveFile uploadParameters:params];

NSLog(@"Starting Upload to Google Drive");

[self.progressBar setHidden:FALSE];
[self.progressBar startAnimation:sender];

[self.driveService executeQuery:query completionHandler:^(GTLServiceTicket *st, GTLDriveFile *df, NSError *error){
    [self.progressBar setHidden:TRUE];
    if (error == nil) {
        NSLog(@"File upload succeeded");
    }else{
        NSLog(@"Uh-oh: File upload failed");
    }
}];

 }