Why does Yandex-suggest work via AJAX and not via websocket?

Question

JSON

The websocket is now supported in 99% of cases, less data would go through the websocket at times, especially if you use a binary protocol. And they drive back and forth kilobytes of JSON for each keystroke. Why not WS if it is available to the client?

Answer 1

Let's not skimp on matches

Answer 2

Yandex is a huge company with a bunch of projectors. It is this service that 7 students can write in some far corner of the Moscow office. If they have json somewhere deep, then no one will rewrite half of the infrastructure for these 7 students. Yandex has not been a startup for a long time, but a factory where people from one office may not know anything about third-party projects.

Answer 3

Do not confuse the data transfer protocol and data format, json is quite minimalistic, not every binary format will take up less space