Hi Markus! Yes you can get the Jira card widget data like for all other widgets on the board.

For example: 

You're absolutely right - Jira card just extends card widget. Unfortunately there is no any particular attribute that tells you for sure that this card is a Jira card. You can only determine this by circumstantial signs. For example you can find in customFields a field with an issue key from the jira. 

Hope this helps

Hi,

This is exactely what I am looking for but it doesn’t work anymore with sdk v2.0

I tried to use miro.board.get() but it doesn’t retrieve the custom fields as it is shown in the example above.

This is what I get with miro.board.get():

Any idea how can I retrieve the fields from a Jira Card?

Thank you!