Assign a process variable in a REST API variable in the UI Designer, is it possible?

I have a login screen where according to the user that is logging I need to display only the companies that he / she attends, I was able to assign to a process variable the respective company code to the user who accessed the system and I have a BDM where all the Registered companies are already available to be displayed in the UI Designer but I do not know how to display the companies that have the same code as the user that is accessing, so I thought of creating a API REST variable that would only return companies with the same code , But I can not put a process variable in this query, is it possible?

No, but you may find it easier to write a Custom REST API for this case.

See here: http://documentation.bonitasoft.com/?page=rest-api-extensions

This refers to Subscription but if you export a REST extension you should be able to develop your own for Community.

regards
Seán

PS: While this may not be the complete answer you’re hoping for, it does indicate a possible solution, please mark as resolved.

But in this example he has in the forum he was able to display the contents of a process variable (In array format) in UI Designer:

http://community.bonitasoft.com/questions-and-answers/how-add-process-variable-ui-designer-form-bonita-7

But I did not understand how he managed to do this