How to: Limit user-defined parameter to a single context

In this example, the user wants to limit the parameter to a single context, like in a header or a query string. If the same variable appears in a different location, it will trigger the VIOL_PARAMETER_LOCATION violation.

{
    "policy": {
        "name": "user_defined_parameters_misc_test",
        "template": {
            "name": "POLICY_TEMPLATE_RATING_BASED"
        },
        "applicationLanguage": "utf-8",
        "enforcementMode": "blocking",
        "blocking-settings": {
            "violations": [
                {
                    "name": "VIOL_PARAMETER_NUMERIC_VALUE",
                    "learn": true,
                    "alarm": true,
                    "block": true
                },
                {
                    "name": "VIOL_PARAMETER_VALUE_LENGTH",
                    "learn": true,
                    "alarm": true,
                    "block": true
                },
                {
                    "name": "VIOL_PARAMETER_STATIC_VALUE",
                    "learn": true,
                    "alarm": true,
                    "block": true
                },
                {
                    "name": "VIOL_PARAMETER_DATA_TYPE",
                    "learn": true,
                    "alarm": true,
                    "block": true
                },
                {
                    "name": "VIOL_PARAMETER_LOCATION",
                    "learn": true,
                    "alarm": true,
                    "block": true
                }
            ]
        },
        "parameters": [
            {
                "name": "headerparam",
                "type": "explicit",
                "parameterLocation": "header",
                "mandatory": false,
                "allowEmptyValue": false,
                "allowRepeatedParameterName": false,
                "sensitiveParameter": false,
                "valueType": "user-input",
                "dataType": "alpha-numeric",
                "checkMinValueLength": false,
                "checkMaxValueLength": false
            }
        ]
    }
}