Is it possible to use flash messages without sessions?

Question

Node.js

Became in a dead end.
Before that, I used flash messages on a regular Node / Pug stack, stored sessions and transmitted messages. How to implement this if on the Vue front?
The matter is that I do not store sessions since. decided to use JWT. Can I use flash without sessions? Or it is necessary to include sessions? Will they live with JWT? Or is there another way to do it with Vue?

Answer 1

backend give json like :
{"type": "is-info", "text": "oops"}
and shove it into a component like
https://jsfiddle.net/Linusborg/wnb6tdg8/