How can the key value be made dynamic?

[xXAvoraXx]

Hello, I need an expression to check key value pairs with a condition, but the key value here must be variable, for example, there are non-constant keys such as “ID” or “departmentName”.

How can the "key" value be made dynamic?

  condition is_valid_map_string(_mapstring: map<string>) {
    "key" in _mapstring && _mapstring["key"] != ""  && _mapstring["key"] > "" 
  }

[xXAvoraXx]

why can't I use the _mapstring: map<list<string>> construct?

type action-test
  relations
    define member: [user with is_valid_key_value_in_list]

condition is_valid_key_value_in_list(_mapstring: map<string>, key_name: string, expected_value: string) {
    key_name in _mapstring && _mapstring[key_name].contains('"' + expected_value + '"')
}


{
    "writes": {
        "tuple_keys": [
            {
                "user": "user:df80720c-9efa-493c-935a-d43729702a71",
                "relation": "member",
                "object": "action-test:GetListStudents",
                "condition": {
                    "name": "is_valid_key_value_in_list",
                    "context": {
                        "_mapstring": {
                            "ID": "{\"values\": [\"1\", \"2\", \"3\", \"4\", \"5\", \"6\"]}",
                            "departmentName": "{\"values\": [\"IT\", \"HR\"]}"
                        }
                    }
                }
            }
        ]
    },
    "authorization_model_id": "{{authorization_model_id}}"
}