I tried to create a template which insert a transaction with the current date
# -*- mode: snippet -*-
# name: breakfast
# key: breakfast
# condition: t
# --
2019-09-05 * ""
Assets:DebtWechat CNY
Expenses:Food:Breakfast
How could change 2019-09-05
to a insert-current-date function?
You can embed elisp code in your snippet. For your example, you could use something like
`(format-time-string "%Y-%m-%d")` * ""