import { type LazySessionFlavor } from "https://deno.land/x/grammy@v1.32.0/mod.ts";
A lazy session flavor is a context flavor that holds a promise of some
session data under ctx.session.
Lazy session middleware will provide this promise lazily on the context
object. Once you access ctx.session, the storage will be queried and the
session data becomes available. If you access ctx.session again for the
same context object, the cached value will be used. Check out the
documentation on lazy session
middleware to know more, and read the section about lazy sessions on the
website.
Methods
Session data on the context object, potentially a promise.
WARNING: You have to make sure that your session data is not
undefined by providing a default value to the session middleware, or by
making sure that ctx.session is assigned if it is empty! The type
system does not include | undefined because this is really annoying to
work with.
Accessing ctx.session by reading or writing will throw iff
getSessionKey(ctx) === undefined holds for the respective context
object ctx.