{

"radius_agent": {
  "request_processors": [
    {
      "id": "Authorization",
      "filters": ["*string:~*vars.*radReqType:*radAuth"],
      "flags": ["*authorize", "*attributes", "*accounts", "*continue"],
      "request_fields":[
        {"tag": "Category", "path": "*cgreq.Category", "type": "*constant", 
          "value": "call"},
        {"tag": "RequestType", "path": "*cgreq.RequestType", "type": "*constant",
          "value": "*prepaid", "mandatory": true},
        {"tag": "OriginID", "path": "*cgreq.OriginID", "type": "*composed",
          "value": "~*req.Acct-Session-Id", "mandatory": true},
        {"tag": "Account", "path": "*cgreq.Account", "type": "*composed",
          "value": "~*req.User-Name", "mandatory": true},
        {"tag": "Subject", "path": "*cgreq.Subject", "type": "*composed",
          "value": "~*req.User-Name", "mandatory": true},
        {"tag": "Destination", "path": "*cgreq.Destination", "type": "*composed",
          "value": "~*req.Called-Station-Id", "mandatory": true},
        {"tag": "SetupTime", "path": "*cgreq.SetupTime", "type": "*composed",
          "value": "~*req.Event-Timestamp", "mandatory": true},
        {"tag": "AnswerTime", "path": "*cgreq.AnswerTime", "type": "*composed",
          "value": "~*req.Event-Timestamp", "mandatory": true},
        {"tag": "PasswordFromAttributes", "path": "*cgreq.PasswordFromAttributes", "type": "*constant",
          "value": "*attributes"}
      ],
      "reply_fields":[
        {"tag": "MaxUsage", "path": "*rep.SIP-AVP", "type": "*composed",
          "value": "session_max_time#;~*cgrep.MaxUsage{*duration_seconds}", "mandatory": true}
      ]
    }
  ]
}

}