Help Making a Design Choice, AJAX vs. Websocket

[OvermindDL1]

@antalvarenga

So what I want is when you select a Unit, only Subjects belonging to that Unit will appear on the select box for Subjects. Simple enough.

Is this “feature” too simple to justify using Channels? After reading this thread it seems a simple AJAX request should be more appropriate, but I have zero experience with AJAX and little with Channels.

Eh for autocomplete a simple ajax tends to be fine, unpoly even makes it very simple, or you can server-drive it over phoenix channels by using the Drab library, which lets you drive it from phoenix over a websocket rather transparently.