API to fetch all the workflows, by passing a user id or group name

[Tabu]

Hi,

Is it possible to fetch list of workflows to whom an user is assigned directly or indirectly (group)?

We need to create an API, to fetch all the workflows, by passing the userid or group name as a parameter, who has permission to view the tasks related to that particular workflow.

Here, we are not concerned about only tasks, we are basically trying to fetch workflows related to user id or group name

Any help or guidance would be appreciated. Thank you!