This is where REST just breaks down. In any app I've written it always gets to the stage where I'm left with the choice of breaking away from a truly restful ap

This is where REST just breaks down. In any app I've written it always gets to the stage where I'm left with the choice of breaking away from a truly restful api, or firing off multiple requests. Sometimes REST wins, sometimes efficiency wins, but they really shouldn't be mutually exclusive choices.