Hi Vic I got your point. Have few questions on the same: 1. Since each one of our thread will have a different user dealing with a different spreadsheet, I'm not sure if I can modify the service object's credentials in the multi-threaded fashion. So in a situation where I change, the credentials in thread A and try to retrieve a feed instance in thread B (which might have already authenticated), then I believe the results will be wrong. If I go by your words "authenticated client", then all the threads need to use the same user, which should not be the case. Please advice.
2. Secondly I feel the captcha challenge comes up due to the fact that from the single IP, the number of Google API calls made are exceeding some defined limit. If this is correct, then even with authenticated clients if we do too many hits and exceed the limit, we're bound to get the same issue again. Do you think this is not the case? 3. If you're convinced that both the above cases are not solving our problem, do you think going the OAuth way will allow us to exceed the call limits? If so is there a way where in we can have a token (or other id) that is specific to the application and not specific to the user? NRao
