Hello,
Where can i find the guide about the connection to mysql server from project Webix Jet?
Both Webix and Webix Jet are client side solutions.
You can create a REST / GraphQL service on server side and use command .load and .save API of components to load and save data from such a service
webix.ui({
view:"list", url:"/some/users", save:"/some/users"
})
Check https://webix.gitbook.io/webix-jet/part-ii-webix-jet-in-details/models for best practices.