DeviceRegistryEnrich 活動

deviceRegistryEnrich 活動可讓您將資料從 AWS IoT 裝置登錄檔新增至訊息承載。舉例而言，若為以下的 訊息：

{
    "temp": 50,
    "hum": 40,
    "device" {
        "thingName": "my-thing"
    }
}

deviceRegistryEnrich 活動如下所示：

{
    "deviceRegistryEnrich": {
        "name": "MyDeviceRegistryEnrichActivity",
        "attribute": "metadata",
        "thingName": "device.thingName",
        "roleArn": "arn:aws:iam::<your-account-number>:role:MyEnrichRole",
        "next": "MyDatastoreActivity"
    }
}

輸出訊息現在看起來像這個範例。

{
    "temp" : 50,
    "hum" : 40,
    "device" {
        "thingName" : "my-thing"
    },
    "metadata" : {
        "defaultClientId": "my-thing",
        "thingTypeName": "my-thing",
        "thingArn": "arn:aws:iot:us-east-1:<your-account-number>:thing/my-thing",
        "version": 1,
        "thingName": "my-thing",
        "attributes": {},
        "thingId": "aaabbbccc-dddeeef-gghh-jjkk-llmmnnoopp"
    }
}

您必須在活動定義的 roleArn 欄位中指定角色，且該角色需連接適當許可。角色必須具有如下所示的許可政策。

該角色的信任政策則如下所示：