Preparing data in json on backend and populating data via ajax on frontend, what're the problems?

Question

Preparing data in json format on backend and populating data to templates via ajax on frontend, what're the problems with this architect design? Assume all visitors use javascript-capable browsers, and we don't care about the number of HTTP connections that a webpage has to make.

Answer 1

That architecture is fine, in fact it is the architecture enforced by some frameworks like javascriptmvc.

Just some comments:

• Depending on the complexity of the templates the rendering can be slow in the client side.

• If you have a lot of simultaneous requests from the same client to get data, they will be queued to keep a maximum of two simultaneous requests delaying the page load.