Multipart/Mixed with Node-RED

General
1

Hi,
I'm trying to send a multipart/mixed payload using node-red. I'm not sure how to achieve multipart using the function or templates. Here is my body of my POST request that needs to be sent as a multipart. Can someone please help?

--f0Ve5iPP2ySppIcDSR6Bak
Content-Type: multipart/related;boundary=penFL6sBQHJJUN3HA4ftqC

--penFL6sBQHJJUN3HA4ftqC
Content-Type: application/vnd.test.meta+json

{
    "type": "item",
    "version": "1.0",
    "payload": {
        "type": "standardTimeSeries",
        "version": "1.0",
        "details": {
            "configurationId": "CustomAgentConfig"
        }
    }
}

--penFL6sBQHJJUN3HA4ftqC
Content-Type: application/json

[
    {
        "timestamp": "2019-01-07T13:46:03.780Z",
        "values": [
            {
                "dataPointId": "Humidity01",
                "value": "55",
                "qualityCode": "0"
            },
            {
                "dataPointId": "Temperature01",
                "value": "27",
                "qualityCode": "0"
            }
        ]
    },
        {
        "timestamp": "2019-01-07T13:55:03.780Z",
        "values": [
            {
                "dataPointId": "Humidity01",
                "value": "55",
                "qualityCode": "0"
            },
            {
                "dataPointId": "Temperature01",
                "value": "27",
                "qualityCode": "0"
            }
        ]
    }
]
--penFL6sBQHJJUN3HA4ftqC--
--f0Ve5iPP2ySppIcDSR6Bak--
2

Hi Ram,
Is this perhaps something you could achieve using node-red-contrib-multipart-encoder node??
Bart