These REST queries happen a lot and will continue to happen, but this data that Yahoo! provides is fairly static. We?e basically querying a database of sorts. So it makes sense that we should cache this data.
We?l demonstrate how to cache these queries using symfony? sfFunctionCache class.
Of course, it's no secret that Yahoo uses Symfony or that our Geocoding Service is quite popular. And, of course, having a straightforward caching implementation means faster apps for your users. Check it out.
Yahoo! Developer Network