Jason, The answer depends on how your application is affected by a stale and possibly incorrect list. If the accuracy of the list is not critical and the application needs the API calls for other logic, you can cache for longer. If the list needs to be roughly accurate you should cache for a day.
This vague answer is attempting to suggest that this is a design choice that is heavily based on the goals of your application. Thanks, Doug Williams Twitter API Support http://twitter.com/dougw On Mar 13, 9:22 am, Jason Levine <jasonalev...@gmail.com> wrote: > I'm working on a Twitter application. As part of my application, to > reduce calls to the Twitter API, I'm implementing a cache of the > user's Friends list. My question is: How long should I keep this > cache before I consider it out of date? 1 Day? 3 Days? 1 Week?