How to query for user profile fields of the author of the current post?

Hi,

I have defined user profile fields.
Now I want to display these user profile fields for the author of the current post. They will be shown through a shortcode in the sidebar.

I managed to get it all working properly, except for a minor detail. I know how the get the author's user id, I know how to get the user profile fields, but what I don't know is the code to pass on the author's user id to the query.

This is what I have:

<div>
{% set post = mb.get_post( ) %}

{{ post.post_author }}

{% set user = mb.get_userdata( 583 ) %}
<strong>Name:</strong> {{ user.user_login }}
<strong>Age:</strong> {{ user.age }}
<strong>Social status:</strong>{{ user.social_status }}
<strong>Likes:</strong>{{ user.likes}}
<strong>Experience:</strong>{{ user.experience }}
<strong>Limits:</strong>{{ user.limits }}
<strong>Other:</strong>{{ user.other }}

[su_button url={{ user.your_shared_folder }} target="_blank" style="default" background="#da4453" color="#FFFFFF" size="5" wide="no" center="yes" radius="0" icon_color="#FFFFFF" text_shadow="none" ]Shared Folder[/su_button]
</div>

So for now I just put hardcoded the author's user id, to test the rest.
But I'm looking for that "bridge code".

Can you pls help?