用JavaScript解码有效载荷

Question

我需要一些支持，以用JavaScript解析有效载荷。在下面，您可以看到JSON的身体。我只需要返回ValueType“居住者”。

{"id":"8684bc99-5a69-4b7a-92c2-69faa91b668b","type":"airthings-webhook-cloudevent-occupancy-ventilation-sample-feed","source":"https://dashboard.airthings.com/integrations/webhooks/2c823594-3c4b-4352-9929-8486a5f8a985","dataContentType":"application/json","labels":{},"data":[{"measurementSystem":"METRIC","serialNumber":"2930118961","recorded":"2022-05-04T08:55:00","occupants":4.0,"ventilationAmount":171.0,"ventilationState":true,"ratings":{},"sensorUnits":{"occupants":"occ","ventilationAmount":"m3h","relativeVentilationRate":"ach"}}],"time":"2022-05-04T08:58:20.322709","specVersion":"0.2"}

我以以下解码器返回“数据”数组。现在，我需要数据中的对象“乘员”。有人可以告诉我我需要在以下代码中调整什么吗？

function Decoder(request) {

    // Parse JSON into Object
    var payload = JSON.parse(request.body);
    
    // Load Data from JSON
    var data = payload.data;
    var Occupancy = data.occupants;
    //var humidity = data.hum;
    //var battery = data.bat;
    
    // Forward Data into Device using Serial
    return data;
  
    
}