Hi, 
I'm trying to retrive an array from a rest call in a workflow.
{
  "approversList": [
    {
      "username": "user1"
    },
    {
      "username": "user2"
    },
    {
      "username": "user3"
    }
  ]
}
There is any solution to get all usernames and save it into a keyword field? Otherwise, how to get approversList items count?
Thanks