How can an application get information about the place where it was loaded from?

Question

Classmates

When an application is launched, it must read from where it was launched. More precisely
, if it is launched from a group, then information (id, name, etc.) about the group,
if from messages between the group and the user, then information about the chat, or, if possible, information about the group at once.
If from another place, then just information from where.

Answer 1

For obvious reasons, such detailed information is not given
. Information about the common launch source is available https://apiok.ru/dev/types/enums.ApplicationRefere...
( refplace parameter at startup) different custom_args) and publish them in different places