>>In an MPA, we can simply pass models to views and render attributes we need. This isn't the case in an SPA. We need to define data formats and implement seria

>>In an MPA, we can simply pass models to views and render attributes we need. This isn't the case in an SPA. We need to define data formats and implement serialization. >Not really sure what that's about either. JSON exists, and I'm pretty sure nobody is inventing serialization formats in SPAs. I think the author means serialization of models into JSON for your API, which is non-trivial in frameworks like Django - you have to pick which model fields to use, how to represent foreign keys, etc. In Django you can just pass that model object into a HTML template processor (view) in a MPA.