Azure Iot Edge Hub Transmit

An azure iot edge hub transmit.

Example:

If we want to upload our records from the bathhouse:water stream to our IOT cloud, going through an IoT edge HuB endpoint, the config will look like this:

{
    "data_transmit": [
        {
            "transmit_name": "iot_hub_transmit",
            "transmit_type" : "edgehub",
            "filter_stream": [
                "bathhouse:water"
            ],
            "connection_string": "HostName=...;SharedAccessKeyName=...;SharedAccessKey=..."
        }
    ]
}

Configuration:

Required and optional properties that can be configured for the transmit:

• connection_string: A string that provides all the connection info. (Can be found in “Devices” -> “<Actual Device Name>” -> “Primary connection string” in the relevant iot hub page)

• additional_fields: additional field to add in the message payload for e.g. { “processingPath”: “SM”}

• use_websockets: Option to connect to MQTT over websockets (Defaults to False)

• transmit_name: ID for the transmit. It must be unique.

• transmit_type: Method to use in transmitting records.

• filter_stream: A list of streams that will use the transmit. Each stream can either be * (all) or asset:stream.

• timeout: Number of seconds to wait until timing out.

• poll_interval: Maximum number of seconds to wait between requests

• max_request_records: Maximum number of records to send in a single request.

• max_request_size_bytes: Maximum number of bytes allowed in a single request. Size is capped at 4 MB.